Question about Heating & Cooling
Check and see if you have 24volts at the contactor outside.if you do you have a bad contactor. if you don't take the tstat off the wall and take a jumper wire and jump out R to Y on the t-stat if it works you have a bad t-stat. if that does not do anything check if you have a wet switch or a float switch my be open. if you don't have one in your inside unit you should have a two wire going out to the condensing unit. you should have two t-stat wires on y in the inside unit and one of the wire that go to the condensing unit is on c or com. if you have power at y and c in the inside unit (must have door switch and y and r jumped at t-stat) you have a break in your wire to the condensing unit. alot of times landscapers it i with the weed wacker lol. hopes this helps you.
Posted on May 28, 2010
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Posted on Jan 02, 2017
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