What happens if the blower speed of an AC unit is too high?
If a blower speed is set too high, your AC might not be operating optimally. This is because the evaporator coil will not be able to adequately dehumidify the space in need of cooling. On the other hand, if the blower speed is too low, your evaporator coil is at risk of “freezing.”
How to test circuit coming in from low blower?
If you want to test the circuits coming in, it will be as follows: Terminal “A” Tan = Speed 2, power through blower switch from Low Blower fuse, 20 amp, Ignition Terminal “B” Yellow = Speed 1, power through blower switch from Low Blower fuse, 20 amp, Ignition
What happens if air handler blows at improper speed?
This could result in liquid refrigerant floodback that would likely cause compressor failure. It is possible that your AC’s air handler blower is functioning at the improper speed, and to maximize its performance, you should make sure that is not the case.
Why does my Buick Century air conditioner not work?
This 2002 Buick Century came in with the complaint that the lower blower speeds do not work. This Century has manual air conditioning controls. I have been down this road many times and it is just a faulty blower resistor. I will give actual testing information later, but for now I am just going to concentrate on changing the resistor.
Why is my AC blower running very slow?
If the bearings are dry, then you need a new blower motor. (unusual) Since you have a heat pump, if it is a higher performance model it may have an electronic blower speed control that is supposed to automatically slow the blower when it is very cold outside to ensure an adequate warm air temp inside.
What happens if air handler blower speed is too low?
This is because the evaporator coil will not be able to adequately dehumidify the space in need of cooling. On the other hand, if the blower speed is too low, your evaporator coil is at risk of “freezing.” This could result in liquid refrigerant floodback that would likely cause compressor failure.
Why is my Corvette blower not working full speed?
If the low and medium settings are not working, it’s likely to be the switch or some connection problem to the resistors that slow the blower. The second is probably the case. When you slide the lever to Max A/C, there’s a relay on the firewall that kicks in to bypass the resistors and make the blower run full speed.
Why is the blower motor not working on my car?
My car has an automatic transmission. Hi There, The resistor is what controls the speed of the blower motor, not the relay. The blower motor relay supplies power to this motor when you turn the switch to “on” that can sometimes fail. When this happens, you may notice that you will not feel anything blowing out of the vents at all.