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james34Sep 16, 2025
What does H23 (Indoor Pipe Temperature Sensor Abnormality) mean on my Panasonic CU-E9NKUA?
- WweissdanielleSep 16, 2025
The H23 error on your Panasonic Air Conditioner indicates an abnormality with the indoor pipe temperature sensor. This can be caused by a faulty connector connection, a faulty sensor, or a faulty PCB.






