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Jacqueline BurnsAug 20, 2025
Why does my Thermal Zone A/C 9A45YIMI show error P1?
- SSabrina ForbesAug 20, 2025
If your Thermal Zone Heat Pump displays error code P1, it indicates over voltage or over low voltage protection. First, check the supply voltage. If the voltage is within the correct range and the problem persists, the outdoor PCB may need to be replaced.
