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Why phase reverse switch only works when cold?

On my Spectral DMC20 phase switch only works when unit cold. In recent heat wave (104-113 degrees) I turned off electronics fearing ac failures. When I turned on today discovered phase reverse works when the unit is cold. After warm up switching again gave silent in reverse position? 
ptss

Showing 1 response by oldhvymec

oldhvymec
5,101 posts
 
Bypass the phase switch all together and use the cables to swap phase. No cost fix ay? Never have a phase switch problem again either.. 

The better way is to have a "POT" 0 to 180 degrees out of phase.

Regards
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