NIBE · S-Series Heat Pumps
The Heat Pump has registered 5 repeated high-pressure alarms within 4 hours. This indicates a consistent problem with high refrigerant pressure in the system.
Click steps to track your progress.
Check the system's particle filter for blockages and clean it if necessary (ensure power is off first).
Verify that there is proper flow in the heating medium system, checking for closed valves or airlocks.
Bleed the heating system to remove any trapped air.
If the alarm continues to recur, contact a qualified NIBE service technician for an inspection of the refrigerant circuit.