Question about Ruud Matching Split Air Conditioner

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It wont turn on

Nothing will turn on, but it has worked for years. What should be the first thing I look at?

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If nothing will come on check the breaker to the indoor section, check that the service switch by the in door section is on and the blower door cover is tightly closed. If all these junctions are transmitting power then it may be a burned out transformer. If you can check for 120v on the primary coil of the transformer and 24v on the secondary that would tell you where the problem is. If theres no voltage on either side then backtrack from the transformer on the 120v side till you find 120v. If theres 120v but no 24v your transformer secondary is burned out. If theres both then the problem is downstream from the transformer: circuit board 3amp fuse, loose wiring.

Posted on Jul 21, 2008

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