NIBE · S2125 Air/Water Heat Pump
This alarm is triggered by 3 repeated instances of high discharge temperature within 4 hours, typically indicating a disruption or fault in the refrigerant circuit.
Click steps to track your progress.
Check the indoor module/control module display for specific action instructions.
Verify the air flow to S2125 is not blocked by foreign objects.
Ensure the outdoor unit is clear of snow, ice, or debris that might impede air circulation.
If the alarm persists, contact a qualified technician to inspect the refrigerant circuit and charge levels.