H64 — Outdoor high pressure sensor abnormality

What does H64 mean?

The high pressure sensor in the outdoor unit has an open circuit while the compressor is stopped. This prevents proper operation monitoring.

• High pressure sensor has an open circuit
• Faulty lead wire or connector to the high pressure sensor

Click steps to track your progress.

1. 1

   Inspect the high pressure sensor for damage or loose connections.

2. 2

   Check the lead wire and connector of the high pressure sensor.

3. 3

   Ensure the sensor is properly seated and secured.