Current Sensor Error

What does UH mean?

The current sensor in the outdoor unit is reporting an error, meaning the system cannot accurately monitor compressor current. This can lead to improper protection, inefficient operation, or inability to detect actual overcurrent conditions.

• Error detected by the current sensor.
• Malfunction or inaccurate reading from the current transformer (CT).
• Wiring issue to the current sensor.

Click steps to track your progress.

1. 1

   Inspect the current sensor and its connections on the outdoor unit PCB for any visible damage or looseness.

2. 2

   Verify the output signal of the current sensor (e.g., voltage or resistance) using a multimeter if specifications are available.

3. 3

   Check for visible damage or discoloration on the outdoor unit PCB in the area of the current sensing circuit.