Why does my AC fan not work at high speeds?
On the low speeds, the fan relay routes the voltage thru the resistor block. When you switch to high fan speed, the relay switches over to supply full voltage from the battery to the fan motor. Tester is right.
Do you need to replace your AC fan motor?
Often referred to as the “heart” of HVAC equipment, fan motors work hard and under tough conditions for years. While fan motors don’t need much, overlooking maintenance can have a serious impact on your air conditioning system and the comfort of your home, but if you do need a new one give All Appliance Parts a call.
Why does my Astro AC fan not work?
My 91 Chevy Astro doesn’t like to blow air on high. The AC/Heater fan works fine at lower settings but when in high it doesn’t work at all or will run for 30 seconds and then stop. I’ve replaced the switch in the dash, but that didn’t help.
What to do when your AC fan stops blowing air?
If your AC has stopped blowing air, has weak airflow, or you hear unusual noises, do a quick inspection of the fan motor. The motor is located in the condenser unit. Listen for a humming sound that tells you the AC compressor is functioning.
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.
Is it worth it to replace an AC fan?
Purchasing a new compressor is substantially more expensive than replacing the fan. When the fan is not working properly, you won’t feel air coming out of your vents, and the air conditioner coils will end up freezing over. Therefore, it’s essential to keep it in good condition if you want your air conditioner to work.
What to look for in an AC fan?
Look for a resistance reading. A reading of zero means the fan motor winding is likely shorted and causing the breaker to trip or blow. An infinite reading, on the other hand, may indicate an open motor winding. If either of these conditions exists, the fan motor needs to be replaced.
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.