Outdoor AC unit stays on even with open contactor
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Outdoor AC unit stays on even with open contactor
Help.
Ran AC for 1st time this year. Outdoor unit when I woke up was iced up as indoor unit had stopped. I had to pull the breaker to get it to stop. Contactor is not stuck shut, it is open. When I put breaker back in, unit outside immediately starts. Thermostat disconnected. What would be causing the unit to start with the contactor open?
Ran AC for 1st time this year. Outdoor unit when I woke up was iced up as indoor unit had stopped. I had to pull the breaker to get it to stop. Contactor is not stuck shut, it is open. When I put breaker back in, unit outside immediately starts. Thermostat disconnected. What would be causing the unit to start with the contactor open?
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After further investigation, I noticed i have 2 orange wires going to the compressor. 1 goes to the bottom of the contactor, 1 to the top. If i disconnect bottom orange, unit operates normal(tstat controls it, doesnt run always as before). I put the orange with the other orange at the top of the contactor. Works fine. Any ideas?
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Condensing unit stays on
Usually inside the wiring cover is a wiring diagram. If you can find it, trace the wires & make sure they are the same as the diagram. If they are & the unit still stays on, the contactor points could be welded together.