ac fan motor runs then stops

Hi Michael what could be a cause for an outdoor fan that starts with the AC unit but stops after the unit has run awhile maybe 20-25 minutes. With AC on blower fan runs then stops.

Air Conditioner Blower Motor Cousin S Air Inc

It seems like it may be running a bit slow but not positive.

. If I run the furnace the blower operates as expected. I noticed the other day that the compressor was running on the unit but the fan was not. 1 Your blower is getting bad the motor starts out normal as it get going the blower motor becomes hot and shut down 2 You have debris stuck in the blower fan you need to locate the blower and clean the airway if it is clogged.

The hoses the fan on the outside ac unit starts then stops. Hey all - Im new to the forum and looking for some help with my HVAC problems. If the circuit breaker is tripped due to overheating it will cause your AC to stop running.

What can be the problem. When a relay becomes stuck the circuit remains closed. Also see BLOWER FAN NO START NO STOP Condenser fan motor runs backwards Could be a bad start-run capacitor or a bad control board.

The fan motor will NOT run backwards at start with a reverse assist. Relays are what open and close the electrical circuit in an air conditioner. The compressor is warm to touch.

My condenser fan motor on my outdoor unit stops running but the compressor is still on. The hoses from the compressor are cool. That internal pressure relief that you hear hissing can not take too much abuse.

This can be fixed by flipping the switch at the circuit breaker. The AC motor should react immediately when you switch the fun off. Turn the unit off until its fixed or you will be buying a new compressor.

Then go check the circuit breaker. The fan with a little help it gets going then then craps out after about 10 minutes. This is intended to create airflow in your house even when the temperature is already at the correct level.

The compressor is warm to - Answered by a verified HVAC Technician. Your compressor isnt receiving any electricity. This could be a circuit breaker issue or a faulty contactor.

The fan on the outside ac unit starts then stops. My problem is that the air conditioning unit Trane runs fine however when the blower turns on it will run for 25-30 seconds and then turns off for 60-90 secords before turning on again. When fan motors are overworked coupled with a lack of maintenance they can tend to go bad and burn out.

The compressor continues to run. As a result electric power to the fan motor doesnt stop and the fan continues to run. If the thermostat isnt the issue the most likely problem is a stuck relay switch.

Ive got a Ducane HVAC unit that was running an Emerson motor with the following specs. This fan also stops running after 10-15 minutes. Ask Question Asked 4 years 10 months ago.

The unit is a Trane TTN030C100C. My central AC unit decided to stop on the hottest day of the year. The fan motor will restart after it cools.

Read more BillyHvac Journeyman Service Techni. Burnt-out motor Another common reason fans stop working is a burnt out fan motor. Outside AC Fan Motor runs then stops.

HVAC blower motor runs for a few minutes then stops. The easiest way to check on the AC fan motor is to switch your thermostat from Auto or Cool to Fan mode. If your air conditioner starts then stops after only a few seconds or your air conditioner turns off after 30 seconds then chances are theres a problem with your run capacitor and you will need to replace the part.

The fan is loose and not bound. The hoses from the compressor are cool. The Fan Does Not Stop Running If your fan does not stop even after switching off that is a direct sign that the AC motor is bad.

The fan motor housing seems very hot. Malfunctioning of the thermostat is the cause of the problem. After checking the breakers thermostat and overflow shut off did not have one I saw something about a blower motor capacitor.

Active 4 years. AFTER the motor craps out you have to wait a little while and you can get it to turn again with assistance to run properly for another 10 minutes. Condenser fan stops after running 5-10 minutes.

The fan on the outside ac unit starts then stops. In this HVAC Troubleshooting Video I go over the Top 10 Reasons Why the Blower Fan Motor is not starting in a Furnace Air Handler or Packaged Unit for Air. Either the capacitor is weak on the fan side or the fan motor needs replaced.

When the compressor starts the condenser fan motor will start and run for 10-15 minutes then stop running. At the start of the cooling season a year ago the fan would not start. It would start and run normally for a few minutes and then the blower would shut off.

The switch youre looking for should say something like HVAC furnace AC or. I just switched back to cool and the fan and compressor come on but the fan stops after a few minutes while the compressor continues to run. It looks like the fan motor and capacitor were replaced once before with some added wiring that differs from my other unit I have a 2 zone system.

Browse other questions tagged hvac air-conditioning fans central-air testing or. Replaced fan with AO Smith same specs. Solution 1 First go inside and turn off the AC.

The capacitor was tested at full specs at the electric motor supplier. A blower fan may run for a brief while after the compressor motor has stopped but if the outdoor fan never stops check for a problem with the control board wiring or circuit. See CAPACITORS for HARD STARTING MOTORS.

One service company has indicated that it sounds like a winding on the blower fan motor has gone bad. Condenser fan GE rated at 100 amp was running at 38 amps and about 12 rpms rated at 1075 rpm according to a check by a service tech. The fan is on but rotating very slowly.

When Fan mode is turned on the AC fan should be running continuously even when the condenser coils are off. The motor is only about 6 months old because I replaced it due to this issue but the issue is. Heater blower motor starts off blowing then slows down then stops.

The best way to solve the problem is to replace the thermostat. Where do i start.

Ac Not Working Blower Easy Fix Youtube