F12 — Pressure switch activate

What does F12 mean?

The pressure switch has activated, likely due to an abnormal pressure condition within the system. This error is triggered if the activation occurs 4 times within a 20-minute period.

• Problem with the pressure switch itself.

Click steps to track your progress.

1. 1

   Turn off the power supply to the unit at the main breaker and wait 30 seconds before turning it back on.

2. 2

   Observe if the error code reappears on the control panel after restarting the unit.

3. 3

   If the error persists, contact a qualified technician to inspect the pressure switch and system pressures.