Alarm 5299 — Heat Pump Z1 pressure too high

What does 5299 mean?

The pressure in Heat Pump Z1, monitored by sensor JR1, has registered as too high (above 67°C or 44 bar G) three times within two hours, leading to an alarm.

• High-pressure switch tripping due to excessive pressure.
• Poor circulation in the heating system.
• Blocked system filters.

Click steps to track your progress.

1. 1

   Check if the system filters are clean and free from obstructions.

2. 2

   Ensure all valves in the heating system are fully open to allow for proper circulation.

3. 3

   If the alarm continues, contact a qualified technician for further diagnosis.