I turn off the AC unit and try to turn on the AC. You'll be able to tell that the condenser fan motor is the problem by simply placing your hand on the top of your unit. This is to prevent a fire or burning of your clothes. The blower motor has been over heating and keeps shutting down. This warping will cause the fuel to stop moving through the entire circuit, and the engine will shut off. When the thermostat calls for heat, the blower motor comes on immediately. These diaphragms can warp after several seasons of use. I turned it off and noticed a smell, the familiar smell of electrical equipment going 'poof'. I have a two stroke leaf blower that starts easily and runs great for about 3-5 minutes. When we first fired up the ac this year, the condensate drain was clogged and allowed water to run down all over the lower half of the updraft furnace. Overheating: When this happens, the blower motor's thermal-protection device usually shuts the unit off. I have cleaned the ESP probe previously. I touched the motor housing and it is VERY hot - does not seem normal to me at all. Unit ran for about 2 1/2 hours and it was 71 in the house but the blower motor had stopped and the compressor was still running. The carburetor inside a leaf blower uses several plastic diaphragms to bring fuel into the carburetor, mix and measure the fuel and send it off to the cylinder. Then the blower motor turns off, while the burner is still on. All original parts still. I set the t-stat to 68. Then at this point the evaporator coils tend to freeze (sometimes). I have the motor out now and without testing it electrically, the bearings appear to be in good condition - the shaft turns freely and smoothly. While I wait for the new controller module, is there any ideas on why the module is getting hot?. When we first fired up the ac this year, the condensate drain was clogged and allowed water to run down all over the lower half of the updraft furnace. The easiest way to check this is to manually check the motor using your hand. heater works but blower motor gets very hot and will not allow condensation to run out thus causing the heater to no work properly. Having then removed the protective cover from the motor to investigate it became apparent that the motor was too hot to touch with my bare hand. The easiest and most common way to quickly tell is to place your hand on the top of it and it should be warm but if it is very hot (too hot to touch) then there is a problem. Your blower motor can give you some very clear signs of overheating, including: A "hot" or burning smell from vents in the home. Watch the fan limit switch dial during the system heat-up and you will have a better idea what's happening. Use caution, but check the blower motor to see if it is hot. If it isn't, it soon will be. I set the t-stat to 68. Then at this point the evaporator coils tend to freeze (sometimes). It will be really hot to the touch it the fan isn't working properly due to the motor overheating. If you are checking an indoor blower motor, be sure to disconnect the power prior to checking. This warping will cause the fuel to stop moving through the entire circuit, and the engine will shut off. This symptom is often coupled with the furnace shutting off completely. I want to be able to set the stove so that the distribution blower never shuts off and maxes out the heat to the highest possible. If it fails to do so, however, you may find premature brush wear on the motor or, in extreme cases, melted blower housings. Signs of an Overheating Blower Motor. I turned it off and noticed a smell, the familiar smell of electrical equipment going 'poof'. Check for a blower fan that is not starting (bad motor, bad fan capacitor) or blocked airflow - conditions that allow the plenum to overheat and thus shut off the fan at the HI limit. I did check some voltages on the board. This warping will cause the fuel to stop moving through the entire circuit, and the engine will shut off. The carburetor inside a leaf blower uses several plastic diaphragms to bring fuel into the carburetor, mix and measure the fuel and send it off to the cylinder. Loud humming and other unusual noises. Having then removed the protective cover from the motor to investigate it became apparent that the motor was too hot to touch with my bare hand. This symptom is often coupled with the furnace shutting off completely. No sputtering just keeps slowing down till engine shuts off. I noticed the motor is getting hot to the touch. After checking the breakers, thermostat and overflow shut off (did not have one) I saw something about a blower motor capacitor. The blower motor on my furnace gets hot, shuts down and smokes Hot enough for the overlimit switches to shut it down. One of the most common problems is that the blower motor makes a humming sound. My AC fan motor turns off after 1 hour or so but compressor continue to run and gets hot. Use caution, but check the blower motor to see if it is hot. The easiest and most common way to quickly tell is to place your hand on the top of it and it should be warm but if it is very hot (too hot to touch) then there is a problem. For about 5 minutes. Top 4 Problems Why the Blower Fan Motor Won't Shut Off! Continuously Runs! I go over why the Blower Fan Motor Won't Shut off/Continuously Runs and some of the most common reasons why the. The distribution blower shuts off periodically and we can't seem to get the room as hot as we used to. Problems in the carburetor, such as a stuck intake needle. This time the compressor does not come on and fan does not come on. It feels very hot, so I am assuming it is cutting off due to heat. A condensing fan motor should never be too hot to touch and be overheating on any unit whether it be a heat pump, air conditioner, or split system. This was easy to get to and replace and my last hope before waiting for someone to come fix it. Then, the blower motor seems to try to run every 10 minutes or so. The motor will start when it has cooled down, then stops running as described above. Simply replace the belt to get the blower motor operational again. Signs of an Overheating Blower Motor. I have ordered the FoMoCo controller module. When you have an airflow restriction or a cycling thermostat that has stuck closed, the blower housing will get too hot. I have the motor out now and without testing it electrically, the bearings appear to be in good condition - the shaft turns freely and smoothly. This symptom is often coupled with the furnace shutting off completely. It would run non-stop but you would have some AC until the heat wave tames and you can get things fixed up. If it isn't, it soon will be. Any suggestions as to the cause?. BE EXTREMELY CAREFUL WHEN DOING THIS! A hot motor can and will burn you. i am a contractor. This symptom is often coupled with the furnace shutting off completely. Unit ran for about 2 1/2 hours and it was 71 in the house but the blower motor had stopped and the compressor was still running. I changed the starting capacitor out because the fan would not start, it just made a humming noise like it was trying to start. A condensing fan motor should never be too hot to touch and be overheating on any unit whether it be a heat pump, air conditioner, or split system. Why Does my Lawn Mower Engine Stall When it Gets Hot? doesn't get enough gas the engine will shut off. For about 5 minutes. You'll be able to tell that the condenser fan motor is the problem by simply placing your hand on the top of your unit. This warping will cause the fuel to stop moving through the entire circuit, and the engine will shut off. The distribution blower shuts off periodically and we can't seem to get the room as hot as we used to. Any suggestions as to the cause?. When the thermostat calls for heat, the blower motor comes on immediately. If you are checking an indoor blower motor, be sure to disconnect the power prior to checking. later, the burner fires up and everything is great. I turned it off and noticed a smell, the familiar smell of electrical equipment going 'poof'. Problems in the carburetor, such as a stuck intake needle. I want to be able to set the stove so that the distribution blower never shuts off and maxes out the heat to the highest possible. The blower motor has been over heating and keeps shutting down. Watch the fan limit switch dial during the system heat-up and you will have a better idea what's happening. Now, the furnace now starts and runs, but the new motor makes a "whining" sound, and the furnace shuts down after running a few minutes, before reaching the thermostat temperature. No sputtering just keeps slowing down till engine shuts off. The AC will start out the day working great! Cold air blows out it will run for an hour or two and before it gets to temp the blower motor shuts off while the compressor continues to run. This warping will cause the fuel to stop moving through the entire circuit, and the engine will shut off. It would run non-stop but you would have some AC until the heat wave tames and you can get things fixed up. It would start and run normally for a few minutes and then the blower would shut off. Then, the blower motor seems to try to run every 10 minutes or so. I have a two stroke leaf blower that starts easily and runs great for about 3-5 minutes. I have the motor out now and without testing it electrically, the bearings appear to be in good condition - the shaft turns freely and smoothly. Any suggestions as to the cause?. Signs of an Overheating Blower Motor. It will be really hot to the touch it the fan isn't working properly due to the motor overheating. i am a contractor. combustion blower runs constantly and will not turn off. If it isn't, it soon will be. Question: our furnace fan runs but the furnace won't. The blower motor on my furnace gets hot, shuts down and smokes Hot enough for the overlimit switches to shut it down. The new module will run in all speeds except the highestit will run for about 5 seconds and then the blower shuts off. Then the blower motor turns off, while the burner is still on. heater comes on for a few minutes but then shuts off. heater comes on for a few minutes but then shuts off. Then at this point the evaporator coils tend to freeze (sometimes). The easiest and most common way to quickly tell is to place your hand on the top of it and it should be warm but if it is very hot (too hot to touch) then there is a problem. It would run non-stop but you would have some AC until the heat wave tames and you can get things fixed up. I did check some voltages on the board. All original parts still. I have done all the maintenance and cleaning. After checking the breakers, thermostat and overflow shut off (did not have one) I saw something about a blower motor capacitor. After about 3 minutes, the burner shuts off and the blower motor turns on, simultaneously. Overheating: When this happens, the blower motor's thermal-protection device usually shuts the unit off. The blower motor on my furnace gets hot, shuts down and smokes Hot enough for the overlimit switches to shut it down. The easiest way to check this is to manually check the motor using your hand. This symptom is often coupled with the furnace shutting off completely. When we first fired up the ac this year, the condensate drain was clogged and allowed water to run down all over the lower half of the updraft furnace. I noticed the motor is getting hot to the touch. I shut the unit off. Question: our furnace fan runs but the furnace won't. Loud humming and other unusual noises. One of the most common problems is that the blower motor makes a humming sound. I want to be able to set the stove so that the distribution blower never shuts off and maxes out the heat to the highest possible. When you have an airflow restriction or a cycling thermostat that has stuck closed, the blower housing will get too hot. It would start and run normally for a few minutes and then the blower would shut off. If it isn't, it soon will be. The blower motor on my furnace gets hot, shuts down and smokes Hot enough for the overlimit switches to shut it down. Then the blower motor turns off, while the burner is still on. The blower motor has been over heating and keeps shutting down. I have 28 vac from the thermostat. I have cleaned the ESP probe previously. While I wait for the new controller module, is there any ideas on why the module is getting hot?. Watch the fan limit switch dial during the system heat-up and you will have a better idea what's happening. When we first fired up the ac this year, the condensate drain was clogged and allowed water to run down all over the lower half of the updraft furnace. Loud humming and other unusual noises. I did check some voltages on the board. Your blower motor can give you some very clear signs of overheating, including: A "hot" or burning smell from vents in the home. Any suggestions as to the cause?. Now, the furnace now starts and runs, but the new motor makes a "whining" sound, and the furnace shuts down after running a few minutes, before reaching the thermostat temperature. Your blower motor can give you some very clear signs of overheating, including: A "hot" or burning smell from vents in the home. I have cleaned the ESP probe previously. Now it comes on, but only for a minute, then it shuts off, then starts the cycle all over again. Why Does my Lawn Mower Engine Stall When it Gets Hot? doesn't get enough gas the engine will shut off. A hot blower motor, which indicates an overheating problem, will. you have to gaurentee what work you do,so if the motor did reset and started up my fear is it may do the same thing and i am on the hook for. Blower Motor I think I covered everything that has been discussed here but I still have the same issue. Having then removed the protective cover from the motor to investigate it became apparent that the motor was too hot to touch with my bare hand. When we first fired up the ac this year, the condensate drain was clogged and allowed water to run down all over the lower half of the updraft furnace. Overheating: When this happens, the blower motor's thermal-protection device usually shuts the unit off. It would run non-stop but you would have some AC until the heat wave tames and you can get things fixed up. I want to be able to set the stove so that the distribution blower never shuts off and maxes out the heat to the highest possible. It would start and run normally for a few minutes and then the blower would shut off. Extreme heat also can lead to bearing failure in the motor. This warping will cause the fuel to stop moving through the entire circuit, and the engine will shut off. The lowest setting (blue arrow, the left end of the dial) is the "FAN OFF" temperature. combustion blower runs constantly and will not turn off. If it isn't, it soon will be. When we first fired up the ac this year, the condensate drain was clogged and allowed water to run down all over the lower half of the updraft furnace. Question: our furnace fan runs but the furnace won't. When the thermostat calls for heat, the blower motor comes on immediately. My AC fan motor turns off after 1 hour or so but compressor continue to run and gets hot. The easiest way to check this is to manually check the motor using your hand. I noticed the motor is getting hot to the touch. Now, the furnace now starts and runs, but the new motor makes a "whining" sound, and the furnace shuts down after running a few minutes, before reaching the thermostat temperature. Top 4 Problems Why the Blower Fan Motor Won't Shut Off! Continuously Runs! I go over why the Blower Fan Motor Won't Shut off/Continuously Runs and some of the most common reasons why the. The blower motor has been over heating and keeps shutting down. Blower Motor I think I covered everything that has been discussed here but I still have the same issue. Your blower motor can give you some very clear signs of overheating, including: A "hot" or burning smell from vents in the home. heater works but blower motor gets very hot and will not allow condensation to run out thus causing the heater to no work properly. When it has cooled down to a safe temperature, check the motor. The easiest and most common way to quickly tell is to place your hand on the top of it and it should be warm but if it is very hot (too hot to touch) then there is a problem. my question is if you have a furnace blower motor that is exstremely hot and off on thermal and is not resetting because of excess heat would you wait for it to cool and try a capacitor replacement first or relace motor and capacitor. This wasn't the first time this had happened, so in thinking that the motor was spent, I replaced the blower motor and capacitor. Then, the blower motor seems to try to run every 10 minutes or so. later, the burner fires up and everything is great. Why Does my Lawn Mower Engine Stall When it Gets Hot? doesn't get enough gas the engine will shut off. When this gets too hot the thermal fuse cuts the power to the motor and shuts the dryer off. Simply replace the belt to get the blower motor operational again. I touched the motor housing and it is VERY hot - does not seem normal to me at all. Now, the furnace now starts and runs, but the new motor makes a "whining" sound, and the furnace shuts down after running a few minutes, before reaching the thermostat temperature. Then the blower motor turns off, while the burner is still on. I set the t-stat to 68. When the thermostat calls for heat, the blower motor comes on immediately. This time the compressor does not come on and fan does not come on. This is to prevent a fire or burning of your clothes. I want to be able to set the stove so that the distribution blower never shuts off and maxes out the heat to the highest possible. No sputtering just keeps slowing down till engine shuts off. Problems in the carburetor, such as a stuck intake needle. This was easy to get to and replace and my last hope before waiting for someone to come fix it. While I wait for the new controller module, is there any ideas on why the module is getting hot?. After about 3 minutes, the burner shuts off and the blower motor turns on, simultaneously. Having then removed the protective cover from the motor to investigate it became apparent that the motor was too hot to touch with my bare hand. A hot blower motor, which indicates an overheating problem, will. It feels very hot, so I am assuming it is cutting off due to heat. Today the indoor temp was 74. I touched the motor housing and it is VERY hot - does not seem normal to me at all. Having then removed the protective cover from the motor to investigate it became apparent that the motor was too hot to touch with my bare hand. A hot blower motor, which indicates an overheating problem, will. heater comes on for a few minutes but then shuts off. After checking the breakers, thermostat and overflow shut off (did not have one) I saw something about a blower motor capacitor. If it isn't, it soon will be. This wasn't the first time this had happened, so in thinking that the motor was spent, I replaced the blower motor and capacitor. If the fan motor gets too hot, it can cause the fan to act up and eventually shut off. you have to gaurentee what work you do,so if the motor did reset and started up my fear is it may do the same thing and i am on the hook for. These diaphragms can warp after several seasons of use. It will be really hot to the touch it the fan isn't working properly due to the motor overheating. Check for a blower fan that is not starting (bad motor, bad fan capacitor) or blocked airflow - conditions that allow the plenum to overheat and thus shut off the fan at the HI limit. The new module will run in all speeds except the highestit will run for about 5 seconds and then the blower shuts off. Overheating: When this happens, the blower motor's thermal-protection device usually shuts the unit off. Then the blower motor turns off, while the burner is still on. The easiest and most common way to quickly tell is to place your hand on the top of it and it should be warm but if it is very hot (too hot to touch) then there is a problem. Any suggestions as to the cause?. It feels very hot, so I am assuming it is cutting off due to heat. The blower motor has been over heating and keeps shutting down. Having then removed the protective cover from the motor to investigate it became apparent that the motor was too hot to touch with my bare hand. I turn off the AC unit and try to turn on the AC. All original parts still. The carburetor inside a leaf blower uses several plastic diaphragms to bring fuel into the carburetor, mix and measure the fuel and send it off to the cylinder. The easiest way to check this is to manually check the motor using your hand. This is to prevent a fire or burning of your clothes. Then the blower motor turns off, while the burner is still on. my question is if you have a furnace blower motor that is exstremely hot and off on thermal and is not resetting because of excess heat would you wait for it to cool and try a capacitor replacement first or relace motor and capacitor. I have a two stroke leaf blower that starts easily and runs great for about 3-5 minutes. later, the burner fires up and everything is great. Problems in the carburetor, such as a stuck intake needle. The motor will start when it has cooled down, then stops running as described above. This was easy to get to and replace and my last hope before waiting for someone to come fix it. Extreme heat also can lead to bearing failure in the motor. The lowest setting (blue arrow, the left end of the dial) is the "FAN OFF" temperature. It will be really hot to the touch it the fan isn't working properly due to the motor overheating. If this is the case, then the first thing you should do is turn off your motor and allow it to cool. When we first fired up the ac this year, the condensate drain was clogged and allowed water to run down all over the lower half of the updraft furnace. The carburetor inside a leaf blower uses several plastic diaphragms to bring fuel into the carburetor, mix and measure the fuel and send it off to the cylinder. If it fails to do so, however, you may find premature brush wear on the motor or, in extreme cases, melted blower housings. How To 99- 07 Silverado Blower motor resistor replacement heater fan wont shut off Just a little video outlining how to fix the blower motor resistor or blower control module in a chevy truck when. Watch the fan limit switch dial during the system heat-up and you will have a better idea what's happening. HVAC motors have thermal overloads to shut the motor off when it becomes too hot. The blower motor on my furnace gets hot, shuts down and smokes Hot enough for the overlimit switches to shut it down. This warping will cause the fuel to stop moving through the entire circuit, and the engine will shut off. Your blower motor can give you some very clear signs of overheating, including: A "hot" or burning smell from vents in the home. This is to prevent a fire or burning of your clothes. My AC fan motor turns off after 1 hour or so but compressor continue to run and gets hot. The motor will start when it has cooled down, then stops running as described above. One of the most common problems is that the blower motor makes a humming sound. After installing the new motor I find that the fan spins much more freely. The lowest setting (blue arrow, the left end of the dial) is the "FAN OFF" temperature. This was easy to get to and replace and my last hope before waiting for someone to come fix it. The FAN OFF setting lets the furnace blower continue to run for an interval after the furnace burner has turned off, but will shut the blower off after the heat exchanger has been cooled down to this temperature (usually 90 °F). I have 28 vac from the thermostat. my question is if you have a furnace blower motor that is exstremely hot and off on thermal and is not resetting because of excess heat would you wait for it to cool and try a capacitor replacement first or relace motor and capacitor. Then the blower motor turns off, while the burner is still on. After about 3 minutes, the burner shuts off and the blower motor turns on, simultaneously. The distribution blower shuts off periodically and we can't seem to get the room as hot as we used to. It will be really hot to the touch it the fan isn't working properly due to the motor overheating. When it has cooled down to a safe temperature, check the motor. It would run non-stop but you would have some AC until the heat wave tames and you can get things fixed up. my question is if you have a furnace blower motor that is exstremely hot and off on thermal and is not resetting because of excess heat would you wait for it to cool and try a capacitor replacement first or relace motor and capacitor. I have done all the maintenance and cleaning. Overheating: When this happens, the blower motor's thermal-protection device usually shuts the unit off. After 3-5 minutes, it seems to loose power and eventually shuts off. The FAN OFF setting lets the furnace blower continue to run for an interval after the furnace burner has turned off, but will shut the blower off after the heat exchanger has been cooled down to this temperature (usually 90 °F). HVAC motors have thermal overloads to shut the motor off when it becomes too hot. The motor will start when it has cooled down, then stops running as described above. i am a contractor. Use caution, but check the blower motor to see if it is hot. How To 99- 07 Silverado Blower motor resistor replacement heater fan wont shut off Just a little video outlining how to fix the blower motor resistor or blower control module in a chevy truck when. Check for a blower fan that is not starting (bad motor, bad fan capacitor) or blocked airflow - conditions that allow the plenum to overheat and thus shut off the fan at the HI limit. Watch the fan limit switch dial during the system heat-up and you will have a better idea what's happening. Top 4 Problems Why the Blower Fan Motor Won't Shut Off! Continuously Runs! I go over why the Blower Fan Motor Won't Shut off/Continuously Runs and some of the most common reasons why the. I turn off the AC unit and try to turn on the AC. combustion blower runs constantly and will not turn off. This symptom is often coupled with the furnace shutting off completely. The distribution blower shuts off periodically and we can't seem to get the room as hot as we used to. How To 99- 07 Silverado Blower motor resistor replacement heater fan wont shut off Just a little video outlining how to fix the blower motor resistor or blower control module in a chevy truck when. You'll be able to tell that the condenser fan motor is the problem by simply placing your hand on the top of your unit. The new module will run in all speeds except the highestit will run for about 5 seconds and then the blower shuts off. It feels very hot, so I am assuming it is cutting off due to heat. Today the indoor temp was 74. The carburetor inside a leaf blower uses several plastic diaphragms to bring fuel into the carburetor, mix and measure the fuel and send it off to the cylinder. Then at this point the evaporator coils tend to freeze (sometimes). Simply replace the belt to get the blower motor operational again. later, the burner fires up and everything is great. I touched the motor housing and it is VERY hot - does not seem normal to me at all. When the thermostat calls for heat, the blower motor comes on immediately. Why Does my Lawn Mower Engine Stall When it Gets Hot? doesn't get enough gas the engine will shut off. This is to prevent a fire or burning of your clothes. After about 3 minutes, the burner shuts off and the blower motor turns on, simultaneously. The FAN OFF setting lets the furnace blower continue to run for an interval after the furnace burner has turned off, but will shut the blower off after the heat exchanger has been cooled down to this temperature (usually 90 °F). my question is if you have a furnace blower motor that is exstremely hot and off on thermal and is not resetting because of excess heat would you wait for it to cool and try a capacitor replacement first or relace motor and capacitor. Unit ran for about 2 1/2 hours and it was 71 in the house but the blower motor had stopped and the compressor was still running. I have 28 vac from the thermostat. After 3-5 minutes, it seems to loose power and eventually shuts off. If the fan motor gets too hot, it can cause the fan to act up and eventually shut off. Loud humming and other unusual noises. later, the burner fires up and everything is great. If you are checking an indoor blower motor, be sure to disconnect the power prior to checking. I touched the motor housing and it is VERY hot - does not seem normal to me at all. If this is the case, then the first thing you should do is turn off your motor and allow it to cool. If it isn't, it soon will be. No sputtering just keeps slowing down till engine shuts off. combustion blower runs constantly and will not turn off. Use caution, but check the blower motor to see if it is hot. Problems in the carburetor, such as a stuck intake needle. If it isn't, it soon will be. The motor will start when it has cooled down, then stops running as described above. Why Does my Lawn Mower Engine Stall When it Gets Hot? doesn't get enough gas the engine will shut off. This is to prevent a fire or burning of your clothes. This time the compressor does not come on and fan does not come on. I have the motor out now and without testing it electrically, the bearings appear to be in good condition - the shaft turns freely and smoothly. If this is the case, then the first thing you should do is turn off your motor and allow it to cool. The distribution blower shuts off periodically and we can't seem to get the room as hot as we used to. i am a contractor. I turned it off and noticed a smell, the familiar smell of electrical equipment going 'poof'. Any suggestions as to the cause?. Watch the fan limit switch dial during the system heat-up and you will have a better idea what's happening. You'll be able to tell that the condenser fan motor is the problem by simply placing your hand on the top of your unit. Check for a blower fan that is not starting (bad motor, bad fan capacitor) or blocked airflow - conditions that allow the plenum to overheat and thus shut off the fan at the HI limit. I have 28 vac from the thermostat. After about 3 minutes, the burner shuts off and the blower motor turns on, simultaneously. Question: our furnace fan runs but the furnace won't. This was easy to get to and replace and my last hope before waiting for someone to come fix it. My AC fan motor turns off after 1 hour or so but compressor continue to run and gets hot. Extreme heat also can lead to bearing failure in the motor. Today the indoor temp was 74. I turned it off and noticed a smell, the familiar smell of electrical equipment going 'poof'. I have ordered the FoMoCo controller module. This was easy to get to and replace and my last hope before waiting for someone to come fix it. For about 5 minutes. Re: blower fan works for a whilethen quits?? Updated 7:05pm Eastern on 8/7/07 While this is not a good fix you might have someone that does electrical work rig up a power cord to the blower motor (If the motor is good) and plug it in. Signs of an Overheating Blower Motor. If you are checking an indoor blower motor, be sure to disconnect the power prior to checking. How To 99- 07 Silverado Blower motor resistor replacement heater fan wont shut off Just a little video outlining how to fix the blower motor resistor or blower control module in a chevy truck when. The AC will start out the day working great! Cold air blows out it will run for an hour or two and before it gets to temp the blower motor shuts off while the compressor continues to run. I shut the unit off. Having then removed the protective cover from the motor to investigate it became apparent that the motor was too hot to touch with my bare hand. I have 28 vac from the thermostat. Loud humming and other unusual noises. After installing the new motor I find that the fan spins much more freely. One of the most common problems is that the blower motor makes a humming sound. This symptom is often coupled with the furnace shutting off completely. The carburetor inside a leaf blower uses several plastic diaphragms to bring fuel into the carburetor, mix and measure the fuel and send it off to the cylinder. This warping will cause the fuel to stop moving through the entire circuit, and the engine will shut off. How To 99- 07 Silverado Blower motor resistor replacement heater fan wont shut off Just a little video outlining how to fix the blower motor resistor or blower control module in a chevy truck when. you have to gaurentee what work you do,so if the motor did reset and started up my fear is it may do the same thing and i am on the hook for. I have the motor out now and without testing it electrically, the bearings appear to be in good condition - the shaft turns freely and smoothly. Top 4 Problems Why the Blower Fan Motor Won't Shut Off! Continuously Runs! I go over why the Blower Fan Motor Won't Shut off/Continuously Runs and some of the most common reasons why the. Then, the blower motor seems to try to run every 10 minutes or so. Overheating: When this happens, the blower motor's thermal-protection device usually shuts the unit off. BE EXTREMELY CAREFUL WHEN DOING THIS! A hot motor can and will burn you. Watch the fan limit switch dial during the system heat-up and you will have a better idea what's happening. I set the t-stat to 68. I did check some voltages on the board. Problems in the carburetor, such as a stuck intake needle. Unit ran for about 2 1/2 hours and it was 71 in the house but the blower motor had stopped and the compressor was still running. This time the compressor does not come on and fan does not come on.