Bad Capacitor Ac Blower Motor

Check for a tripped circuit breaker.

Bad capacitor ac blower motor.

Its capacitor works like a battery and stores the energy needed by the blower to work properly. A bad or faulty capacitor can exhibit many signs and symptoms. It s important to note that weak airflow can also result from dirty or leaky ducts or a clogged filter. The most common symptom of a bad capacitor is that the motors do not run.

440 volt 35 5 mfd round double run capacitor. A bad capacitor can cause damage over time to a furnace s blower motor. Each of these has a separate capacitor to start it up the start capacitor and to keep it running the run capacitor. You can do this at the transformer checking for a fuse in the low voltage circuit.

This is especially true for the compressor. In an air conditioner capacitors are connected to the three main motors. If the ac fan motor is bad or the capacitor is faulty you should always contact an expert hvac technician to repair or replace parts. But with a bad capacitor your blower cannot function well and may put your family s comfort at risk.

The blower motor in your furnace blows hot air through the ducts and into your home. Fan motors can also run intermittently with a weak or bad capacitor. It will look like someone packed too much material into the tube and it s bulging at the sides. When troubleshooting do not let the furnace attempt to run for more than a couple of minutes without the blower motor starting.

If your blower motor is dirty or has a bad capacitor you can call in an hvac technician to fix the problem. Only let it run just long enough to hear the hum. This could lead to a blower motor problem down the road. Are sometime harder to identify without the right tools and expertise.

If the blower runs slower and or hotter than normal that might indicate the capacitor isn t holding the charge it needs to turn the blower motor. If the power is fine check to see if there is proper voltage. However there are some preliminary steps you can take to rule out other possible causes for your ac not working and confirm that the problem is indeed with the ac fan motor. The compressor motor the blower motor and the outdoor fan motor.

It will look like someone packed too much material into the tube and it s bulging at the sides. Your capacitor might be bad even if it isn t swollen but it s common for a bad capacitor to swell. If you suspect the fan motor is bad the first thing you should check is the power to the motor and the power to the air conditioning unit. On the other hand if your motor is reaching the end of its service life you should start looking for a replacement motor.

Failing capacitors are one of the common reasons for malfunctions in an ac.