Control Board ohms

	Control Board ohms

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Subject	Author	Date
Control Board ohms	TDHetrick	07-21-2006

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Posted by on July 21, 2006, 6:44 pm

My AC has been blown a few transformers, so obviously there is
something wrong in the units. I have tested all the control wires for
shorts, and the fans, blowers, switches and coils for shorts. Nothing
reads below 500 ohms, except for the 24v power leads to the board, that
reads 9ohms. At 24v/9 ohms that about maxes out the transformer. So I
guess my question is.. Is 9 ohms a bad reading at the control board and
can there be a short in the board that still lets the system run but
burns out a transformer in about 10 days? Oh and the control board does
not show any bad error codes.

Thanks

Todd

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