Question about Goodman CLQ36AR49 Air Conditioner
I have goodman AC unit that the voltage measures 240V AC at sub panel breaker and contactor. Which is weird to me since this is three phase service Should be 208 across the two legs I thought. Unit is standard single phase operating on 208V from two legs of three phase service best I can tell.
I have replaced the main sub-panel supply breaker to this circuit 80 amp with a new one (not the main service breaker) and checked all connections in the main & sub electrical panel. I have also switched out the 60 amp sub panel breaker with another one (used) and get the same results When I turn on the AC fan only It hums and voltage is 57 volts on each leg to supply side of contactor. Spinning squirrel cage fan by hand it starts and runs slow. If I try and turn on the AC compressor the sub panel breaker trips immediately.
Power company says supply power is OK to building.
I am thinking of getting a 240 dummy load of some type and going to main panels sub panel supply breaker (80 amp new replacement) to connect it to test electric to that point and if it tests ok, then move to sub panel breaker 60 amp 100 ft away and do same test again and then outside to unit and repeat until I can find what section of wiring the bad connection is in . Does this sound proper?
Building is metal and really hot in attic and I am trying to avoid working in 135 deg heat unless I have to. IDEAs? Any ideas for a dummy load?
offgridman at cs.com
Sounds like you have a bad capacitor for your squirrel cage fan , now as for the a/c unit sounds like you have a direct short in compressor to ground or leg to leg , check all wiring to make sure that it is not grounding out or melted together.
Posted on Jul 23, 2009
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Posted on Jan 02, 2017
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