Immergas Repair Service in Park

What does the 04 error mean on an Immergas boiler?

The 04 error on an Immergas boiler indicates a contacts resistance block, meaning there is a fault detected in the gas valve electrical supply circuit. If you smell gas, do not operate any switches, ventilate the area if safe to do so, leave the property immediately, and call the gas emergency service from outside. If there is no gas smell, switch off the boiler at the electrical supply. Do not attempt to reset. Contact a Gas Safe registered engineer for professional diagnosis and repair of the gas valve circuit.

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 24 error mean on an Immergas boiler?

The 24 error on an Immergas boiler indicates a push button control panel anomaly. The main circuit board has detected a fault with the user control panel. Switch off the boiler at the electrical supply. Wait 30 seconds and switch back on to reset. If normal conditions are restored, the boiler should restart automatically without requiring a manual reset. If the error persists, contact a qualified technician for control panel diagnosis.

What does the 416 error mean on an Immergas heat pump?

The 416 error on an Immergas heat pump indicates compressor discharge overtemperature. The compressor is running too hot, triggering protective shutdown. Allow the unit to cool down completely for at least 30 minutes. Check that the outdoor unit has adequate ventilation and is not obstructed. Switch off at the isolator, wait five minutes, then restart. If the error returns, contact a qualified technician with F-Gas certification. Continued operation with high discharge temperatures can cause permanent compressor damage.

What does the 463 error mean on an Immergas heat pump?

The 463 error on an Immergas heat pump indicates OLP overheating. The overload protection system has detected excessive temperature. Allow the unit to cool down completely for at least 30 minutes. Check that the outdoor unit has adequate ventilation and airflow is not restricted. Switch off at the isolator, wait five minutes, then restart. If the error persists, contact a qualified technician for diagnosis of the overheating cause.

How does the defrost function work on my Immergas heat pump?

The heat pump automatically enters defrost mode when ice builds up on the outdoor unit's evaporator coil. During defrosting, the system reverses briefly to melt the ice, then returns to normal operation.

When does electrical integration (backup heating) activate on my Immergas heat pump?

Electrical integration activates automatically in certain conditions, including during defrost cycles and when outdoor temperatures are very low. The system controller determines when supplementary heating is needed to maintain target temperatures. If the heat pump alone cannot meet the heating demand within a reasonable time, the backup electric resistance provides additional heating capacity.

How should I protect my Immergas heat pump outdoor unit during winter?

Maintain a clear space of at least 60 centimetres around the outdoor unit at all times. After snowfall, gently brush away any snow accumulation from around the unit using a soft broom. Never use sharp objects to remove ice or snow as this can damage the coil fins. Do not cover the unit or stack anything on top of it as this restricts airflow. Some frost on the unit is normal and the automatic defrost cycle will handle this. If the unit remains frozen for more than a few hours, contact a qualified technician.

At what temperature should I store hot water to prevent bacteria growth?

If your Immergas system includes a hot water storage cylinder, the water should be stored at a minimum of 60 degrees Celsius to prevent the growth of harmful bacteria including Legionella. Water at taps should reach at least 50 degrees Celsius within one minute of running. Some Immergas systems include an anti-legionella function that periodically raises the stored water temperature automatically. This does not apply to combi boilers which heat water on demand without storage.

What annual maintenance does my Immergas boiler require?

Annual maintenance should include cleaning the heat exchanger on the fume side, cleaning the main burner, verifying correct ignition and operation, and checking burner settings for both heating and hot water phases. A visual inspection for leaks and corrosion is also required.