Error H27 — Service valve error

What does H27 mean?

An error related to the service valves within the system has been detected. These are used for maintenance.

• Service valve is stuck or not responding.
• Electrical fault with the service valve actuator.
• Communication error with the valve control.

Click steps to track your progress.

1. 1

   Restart the system by turning the power off and then on.

2. 2

   Ensure no service valves have been manually tampered with.

3. 3

   Contact your installer, as service valves require specific procedures to check and operate.

4. 4

   A technician may need to access the system to test or reset the valves.