Immergas Repair Service in Oakham and Bellamy

What does the 403 error mean on an Immergas heat pump?

The 403 error on an Immergas heat pump indicates ice has been detected on the compressor during cooling operation. This is a protective function to prevent compressor damage. Allow the unit to complete its defrost cycle. Check that the outdoor unit is not obstructed by debris, leaves, or snow. Ensure adequate clearance around the outdoor unit for airflow. If the error persists or recurs frequently, contact a qualified technician with F-Gas certification as this may indicate refrigerant charge issues.

What does the 06 error mean on an Immergas boiler?

The 06 error on an Immergas boiler indicates a domestic hot water probe anomaly. The NTC temperature sensor measuring hot water temperature is reporting incorrect readings or has failed. The boiler may continue to provide heating but hot water production will be affected. Switch off the boiler at the electrical supply. Wait 30 seconds and switch back on to reset. If the error persists, contact a qualified technician for probe testing and replacement.

What does the 419 error mean on an Immergas heat pump?

The 419 error on an Immergas heat pump indicates an outdoor unit electronic expansion valve operation error. The EEV controlling refrigerant flow is not operating correctly. Switch off the heat pump at the isolator switch. Do not attempt to reset repeatedly. Contact a qualified technician with F-Gas certification for expansion valve diagnosis. This component is critical for proper refrigerant circuit operation.

What does the 05 error mean on an Immergas boiler?

The 05 error on an Immergas boiler indicates a flow temperature probe anomaly. The NTC temperature sensor measuring water flow temperature is reporting incorrect readings or has failed. Switch off the boiler at the electrical supply. Wait 30 seconds and switch back on to reset. If the error persists after reset, contact a qualified technician for diagnosis and probe replacement. The boiler will not operate correctly with a faulty flow probe.

What does the 37 error mean on an Immergas boiler?

The 37 error on an Immergas boiler indicates low power supply voltage. The electrical supply to the boiler has dropped below acceptable operating limits. Check that other electrical appliances in your home are working normally. If other appliances are also affected, there may be a general power supply issue in your area. Contact your electricity supplier. If only the boiler is affected, switch off the boiler and contact a qualified electrician to check the electrical supply circuit and connections to the boiler.

What COP (efficiency) can I expect from my Immergas heat pump?

The Coefficient of Performance varies by model and operating conditions. For example, the Audax Top 6 ErP achieves approximately 4.28 COP when producing water at 35°C, meaning it delivers about 4.28 kW of heat for every 1 kW of electricity consumed.

What pressure should my Immergas boiler system maintain?

The boiler pressure gauge should read a value between 1.0 and 1.2 bar when the system is cold. This is the optimal operating range for most Immergas boilers.

Why are some radiators not heating up when my Immergas boiler is running?

If some radiators remain cold while the boiler is running, trapped air may be the cause. Bleed each cold radiator using a radiator key by opening the bleed valve until water flows steadily, then close it. Ensure all radiator valves are open. Check that the system pressure is between 1.0 and 1.5 bar after bleeding. If radiators remain cold after bleeding, or if multiple radiators are affected, contact a qualified technician as there may be a circulation pump fault or system blockage.

How do I reset my Immergas boiler?

Locate the reset button on your boiler's control panel, typically marked with a flame symbol or the word Reset. Press the button firmly. On most Immergas models, holding the button for approximately 5 seconds will initiate a restart. If the error clears, the boiler should resume normal operation. If the boiler does not reset or the same error returns, do not repeatedly press the reset button. Contact a qualified technician for diagnosis.

What should I do if my Immergas heat pump outdoor unit is making unusual noises?

Some noise during operation is normal, particularly during defrost cycles when the reversing valve operates. However, unusual grinding, rattling, or continuous loud noises may indicate a fault requiring professional attention.