Question about Ruud UAMB Air Conditioner
Condenser buzzing, but fan won't turn on.
Could the low voltage at the unit be a bad fuse(s)? we will change the fuses and if that doesn't work I will post again.
I am presuming you are talking about low voltage at the motor. The fan and condenser use capacitor assist to start them. They can be damaged by a really bad lightning storm or they can just go bad. Difficult to determine why. If you are seeing a low voltage at the motor the capacitor has most probably failed. Check for a device that looks like a thin tin can with wires on top. Get the numbers off the side and you can find a replacement.
REMOVE ALL POWER before playing with the capacitors, they store energy and can kill!!
There may be 2 caps, one for the condenser, and one for the fan. If the condenser runs for a couple of minutes and then shuts down it is probably just the fan. Easy way to check is if the coils get really hot. If it short cycles there could be a different problem. But I would venture to say it is probably the cap for the fan.
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Posted on Jun 27, 2009
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Posted on Jan 02, 2017
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