Air Conditioner Not Blowing Air
If the air handler does not blow air efficiently, the indoor evaporator coil may be dirty or frozen up. Reduced air circulation, whether caused by clogged filters, a filthy coil, dirty squirrel cage blower, or a damaged fan motor can trigger the coil to freeze up, obstructing air circulation. If your air handler’s motor runs, however, the blower does not move air, the belt that connects the two probably was broken. Changing the air conditioner blower belt is a simple repair if you have a few tools and do-it-yourself skills.
Changing an Air Conditioner Blower Belt
1. Switch off all power to the system and, if the air handler is a gas heater, turn off the gas valve that operates the heating system.
2. Remove the door on the front of the air conditioner cabinet to provide you access to the blower (it might be in a slide-out drawer.) Check the number stamped on the belt and get a precise replacement from a home center or heating supply outlet.
3. You can slide the belt on the motor’s (smaller sized) wheel first and after that start it on the blower wheel. Rotate the fan pulley by hand, holding the belt in place but keeping your fingers from getting caught in between the belt and the pulley. The belt ought to slip right into the right place. If it seems to be tight or tough to embed in location, it may be needed to change the motor install to provide more slack. Then you can re-tighten the tension once the belt remains in place. Check the maker’s specs for correct pressure– in many cases, the belt should deflect about an inch when you push down on it.
4. Lubricate the blower. Lastly, some blower motors need oiling. Note: Those with sealed bearings don’t. If recommended by your maintenance handbook, oil the bearings according to the producer’s instructions.
Does your Air Conditioner Blower Hums But not Run? If the air conditioner’s fan motor makes a sound but doesn’t run, you’ll most likely have to change the fan motor.
AC Air Blower Does not Run.
If the A/C blower doesn’t run at all, it might not be receiving power. Check its circuit breaker and any switch that controls it at the air handler or heating system cabinet. Then examine the door switch– a small switch inside the metal door that avoids the home gadgets from running when the cabinet is open. If this is over your head contactl a professional AC Service company. https://hvacsystempros.com
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