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David
September 15, 2022
I’m getting a CH 07 error and when I looked it up, it said “ Bad Thermistor Wiring”. Which thermistor part number is that? Thanks for your assistance.
David
For model number LP073HD3A
Hello David, thank you for contacting us. The CH-07 error indicates the compressor is drawing excessive current or the discharge pipe temperature is high. A blocked and dirty condenser can also cause this issue, we would recommend cleaning it. If you have low fan RPM we would recommend replacing the capacitor. If the condenser is clean and the fan is fine then the most probable culprit is a discharge temperature sensor, you may need to replace it. If you have any follow-up queries please feel free to reach out to customer service, we are available seven days a week. Glad to be of help!
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Pulled PTAC out of wall sleeve, unhook wire harness from control area, remove condenser shroud and motor and fan blade all at the same time. Replaced motor bracket and re-installed in reverse order.
