Replacement AC fan motor very weak.
Short version: I just replaced a failed AC fan motor. Now the fan actually works BUT it runs at around 20% of the previous speed and blows air very weekly. Also, when I set the fan to auto instead of ...
Forum Discussion
Lazarus Alessandria wrote:
The wires from the new and the old motors are identical.
With the current motor, low blows slower than high so I don't think they're swapped but they are both very slow. Also, "low" on the old motor was about twice as fast as "high" on the new one.
The motor had mounts welded onto it so it could only go in one way. Also the shafts were different lengths and wouldn't have put the fans in the right places if I somehow managed to still put it in backwards.
You'll have to forgive the dumb question... but the condenser fan should be pulling outside air through the fins into the AC housing right? or should it be pushing air from inside the AC housing through the fins and outside the AC housing?
OR
You put the fan motor in backwards! Take it out and turn it around - problem solved! The motor rotation is not normally reversible on these motors. Take a magic marker and draw an arrow on the motor housing. Take it out, turn it around and put it back in watching which way it's supposed to turn.
