Why does my AC unit fan keep stopping?
One of the most common reasons fans stop spinning is because of a dead capacitor. Each air conditioning system has several capacitors, including the start capacitor, which sends signals to the motor, and the run capacitor, which keeps the motor running. Capacitors can go bad over time and need to be replaced.
What causes fan motor to go out?
The main causes of failure are loss of lubricant, a failed run capacitor, a failed bearing in a belt drive, a little water dripping into the windings or a voltage problem. So technicians should carefully check to find the cause of a failure before changing the motor.
When should heat pump fan turn on?
Your heat pump fan won’t run when the air handling unit is off. These two units work in tandem. The fan on your unit should spin when you want air in your house and shouldn’t spin when the temperature has reached the desired temperature set on your thermostat.
Is the fan supposed to be on when heat is on?
Should fan be on with heat? The fan only turns on when cooling or heating (in winter) is required. If you can tolerate most of the summer heat – save for the absolute hottest of days – you’ll want to use the AUTO setting. The AC fan kicks in when needed and stops running when the job is done.
Is it bad if the fan motor is not running?
Keep in mind that just because the fan motor isn’t running, doesn’t mean it’s bad. If the power supply is fine and the windings are in good shape, check the capacitor next. The capacitor helps the fan motor run.
What should I do if my AC Fan is not working?
Replacing the AC fan motor is not that difficult and if you have any mechanical skill, then it should only take you about 2 hours to so. Here are the steps to replace the motor. Once you have seen there is no power coming to the fan motor, remove the screws holding the motor and squirrel cage Remove the squirrel cage from the motor.
When to replace a fan motor or capacitor?
The reading should be within 10 percent of the rated capacitance on the capacitor. If the reading doesn’t match the rating, replace the capacitor. The fan motor is one of the most important components of your air conditioning system. Often referred to as the “heart” of HVAC equipment, fan motors work hard and under tough conditions for years.
What is the fan motor in an AC unit?
What is an AC Fan Motor? The fan motor is a fairly uncomplicated yet vital part of an air conditioner. It’s the part of the unit that pumps air through the system. Without that circulation of air, your AC won’t cool your home.