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What is wrong if a old ac unit never shuts off when thermostat is in auto do you think its the relay?
Wilberventura
The AC unit is fully controlled by the contactor. If the unit turns off by thermostat control such as setting tstat to off, the contactor is ok. The thermostat could be the problem though. yeah i understand that but when i say old unit i mean its so old that the thermostat only have two cables the red one and the white one! the auto and cont the unit has it in the indoor unit!!!
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∙ 14y ago
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