H27 - Service valve error

What does H27 mean?

This error indicates an issue related to a service valve, often detected through an abnormal reading from the high pressure sensor. This fault typically requires professional inspection.

• High pressure sensor is defective
• High pressure sensor is disconnected
• Service valve is not fully open or is faulty

Click steps to track your progress.

1. 1

   Note the H27 error code displayed on the control panel.

2. 2

   Turn off the power supply to the Panasonic Aquarea Heat Pump at the main circuit breaker. Wait for at least 5 minutes, then restore power.

3. 3

   If the H27 error code reappears, contact an authorized Panasonic service technician to check the service valves and high pressure sensor.