H0-00 — OU: Voltage/current sensor problem

What does H0-00 mean?

There is an issue with the voltage or current sensor in the outdoor unit (OU).

• Faulty sensor
• Wiring problems
• Control board malfunction

Click steps to track your progress.

1. 1

   Check all wiring connections related to the voltage/current sensor.

2. 2

   Ensure the power supply is stable.

3. 3

   Perform a power cycle reset.

4. 4

   A technician should diagnose and replace the sensor if necessary.