Carrier 42NQ012N Service Manual page 47

FILE NO. SVM-10031
9-5-2. Power can not be turned on after replacing indoor P.C. board
<Checking Procedure>
Connect the AC
Power supply
Return the wiring of the
Does the OPERATION NO Is it wired as shown NO
power relay is returned to
lamp blink? in Figure below?
the normal procedure.
YES YES
To the paragraph of
"No Power turns on".
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