ac fan motor runs then stops

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. You took over its job of kick-starting the fan by pushing the blades.

How Much Does It Cost To Replace A Condenser Fan Motor

It does that problem repeatedly.

. It seems like it may be running a bit slow but not positive. I also tried running it in AC mode vs. That internal pressure relief that you hear hissing can not take too much abuse.

With AC on blower fan runs 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. Compressor is still running. When a relay becomes stuck the circuit remains closed.

My condensor fan motor starts and after 8-10 seconds stops. The fan motor housing seems very hot. If the thermostat isnt the issue the most likely problem is a stuck relay switch.

Fired it back up later to diagnose and the condenser and fan come on. Same mfd and vac rating as the old one most likely the bearingsthrust washers inside the motor are worn. The motor has to run for a while before it gets good and hot and then the heat is kicking in the failure mode.

The purpose of a capacitor is to store energy thats in return used to power your cooling system. For a condenser the capacitor is typically a dual capacitor. This fan also stops running after 10-15 minutes.

Relays are what open and close the electrical circuit in an air conditioner. If the fan doesnt start running you may have a bad fan motor. Assuming that the replacement capacitor was the same ie.

Kung Fu Maintenance troubleshoots an air conditioner where the compressor is running but the fan motor will not startAlways best to take the capacitor out o. Squeeze the top sides in a bit to allow the compartment to swing out and down to reveal the wiring behind. You can pull the drawer down by carefully dislodging the stop clips found at the upper edge of the drawer on either side.

Turn the unit off until its fixed or you will be buying a new compressor. Now the resistor board part. Replaced fan with AO Smith same specs.

If the fan takes off and then keeps going on its own you more than likely have a bad start capacitor. After a while 20-30 secs the fan motor starts again for another 8-10 seconds and then stops. Can it be the fan motor overheating protection kicking in after 8-10 secs.

And if you found out that your ACs fan stops spinning even though the system is running then the following factors might be the culprit. The fan is on but rotating very slowly. The fan motor will restart after it cools.

Turning ac on the fan runs 5 min. When the compressor starts the condenser fan motor will start and run for 10-15 minutes then stop running. The are a lot of things that can contribute to your capacitor breaking down on you but once it does your air conditioner fan will stop working.

Why does it run for a while and then quit. This might be s fan motor that is going bad a weak run capacitor or you might have a stoppage in the refrigeration cycle that is causing one of the high or low-pressure safety controls to turn off your AC unit. Then stops out side unit.

I shut the unit off to keep the compressor from burning up. Its comes on may run for 15-20 minutes then fan stops unit makes loud noise. Your air conditioners capacitors can be found inside the AC unit connected to three main motors.

I have a Trane X80 furnace with a Nest gen 3 thermostat. The failure is related to heat. Fan ran for 5-10 minutes and shut down again.

At the start of the cooling season a year ago the fan would not start. The compressor continues to run. The torque to drive the motor of your electric fan comes from the magnetic field induced in the motor coils when electricity passes through the coils.

As a result electric power to the fan motor doesnt stop and the fan continues to run. The compressor the blower and the outdoor fan motor. The capacitor was tested at full specs at the electric motor supplier.

Either the capacitor is weak on the fan side or the fan motor needs replaced. By Chris Deziel Updated December 29 2018. Heat mode and the fan still shuts down so I dont think it has anything to do with the defrost cycle.

The most common problem associated with the condenser fan motor getting hot and then stopping is likely the fan capacitor. This combo has worked flawlessly for a summer and a winter. In looking at the posts it seems like folks are being pointed in direction of capacitor or fan motor.

AC unit old has been running fine until couple days ago. Your capacitor could be the reason your air conditioner fan is not spinning. If you have difficulty getting the blades to turn there may be debris wrapped around the fan axle or the.

New to this site however have an issue similar to above. That motor is a 14 HP 575 V 07 FLA and 850 RPM. 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.

The dual capacitor is a run capacitor that serves both the compressor and the condenser fan motor.

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