Question about Goodman Heating & Cooling
General rule is 24 volts to operate control valve. check common at valve to white at valve or out of board. 24 in call, less than 24 when off. sometime s these things back feed or give a false reading. voltage can read say 15 volts but under a load it actually goes away. i have seen a few ac's do this. when connnections get poor you can show voltage but the control does not work the same control applied to voltage elsewhere works> if it works and sequence of operation is correct i wouldn't sweat it. always nice to have two alike so you could check em both and see. but seldom the case. good luck
Posted on Dec 06, 2008
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Posted on Jan 02, 2017
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