ritter0404 Posted July 24 Report Posted July 24 Have a York 3.5 ton heat pump condenser. Last Friday the system went down and I tested and found the board to be the culprit. Replaced the board and not even 24 hours later same issue. 5 resistors under the relays are overheating and I can't figure out why. Unplugged the yellow wire on the y terminal and the bottom blue resistor cooled down. Checked voltage at t-stat wire and is 24 volts. Yellow wire has 24 volts on cool.
hausdok Posted July 25 Report Posted July 25 Umm, Maybe you've mistaken this site for a bunch of HVAC guys? This is a home inspector's site.
Bill Kibbel Posted July 25 Report Posted July 25 8 minutes ago, hausdok said: Umm, Maybe you've mistaken this site for a bunch of HVAC guys? This is a home inspector's site. Yeah, but Marc knows this stuff. Over current or surges would be my amateur guess. Intermitten failure of the transformer? 1
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