Immergas Appliance Repair in Broadfield

What does the 221 error mean on an Immergas heat pump?

The 221 error on an Immergas heat pump indicates an outdoor unit temperature sensor malfunction. The temperature sensor on the outdoor unit is reporting incorrect readings or has failed. Switch off the heat pump at the isolator switch for five minutes. Switch back on and monitor for the error. If the error persists, contact a qualified technician for sensor testing and replacement.

What does the 31 error mean on an Immergas boiler?

The 31 error on an Immergas boiler indicates loss of communication with the remote control or room thermostat. If using a wireless thermostat, check and replace the batteries. Ensure the thermostat is switched on and set to call for heat. Verify the thermostat is within range of the boiler receiver unit. If using a wired thermostat, check that it is switched on and calling for heat. Switch off the boiler at the electrical supply, wait 30 seconds, and switch back on. If communication is not restored, contact a qualified technician to check wiring and control compatibility.

What does the 440 error mean on an Immergas heat pump?

The 440 error on an Immergas heat pump indicates central heating operation has stopped because the outdoor temperature exceeds 36 degrees Celsius. This is normal protective behaviour, not a fault. The heat pump will automatically resume heating operation when outdoor temperatures fall to within normal operating range. No action is required. The unit should resume normal operation as conditions change.

What does the 15 error mean on an Immergas boiler?

The 15 error on an Immergas boiler indicates a configuration error. The control board has detected an electrical wiring anomaly or an incompatibility in the system configuration. The boiler will not start until this is resolved. Switch off the boiler at the electrical supply. Do not attempt to reset or reconfigure the boiler yourself. Contact a qualified technician to diagnose the wiring fault and correct the configuration settings.

What does the 27 error mean on an Immergas boiler?

The 27 error on an Immergas boiler indicates insufficient water circulation in the heating circuit. The boiler has detected inadequate water flow, which may cause overheating. Switch off the boiler at the electrical supply. Check that all radiator valves are fully open. Verify the system pressure is between 1.0 and 1.5 bar on the gauge. Listen for the circulation pump operating when you switch the boiler back on. If the pump is silent or making unusual noises, or if the error persists, contact a qualified technician to inspect the pump and system for blockages.

What operating modes are available on my Immergas heat pump?

Immergas heat pumps support multiple operating modes including central heating, cooling (where applicable), standby, and antifreeze protection. You can cycle through available modes using the Mode button on the control panel.

What temperature should I set for domestic hot water on my Immergas boiler?

For domestic hot water, a temperature setting between 50°C and 60°C is typically comfortable for showers and baths while remaining safe. The boiler allows adjustment through the control panel using the dial or button marked with a tap symbol.

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.

What should I do if I smell gas near my Immergas boiler?

If you smell gas, do not operate any electrical switches, lights, or the boiler controls. Do not use any naked flames or electronic devices. Open windows and doors to ventilate the area only if it is safe to do so. Do not attempt to locate the source of the leak. Leave the property immediately and take all occupants with you. Once safely outside, call the gas emergency service. Do not re-enter the property until it has been checked and declared safe by a Gas Safe registered engineer.

Does my Immergas boiler have a condensate drain that needs attention?

Yes, all Immergas condensing boilers produce condensate that drains away through a dedicated pipe. The condensate drain trap and pipe should be checked as part of annual servicing to ensure they are clear and draining correctly. A blocked condensate drain can cause the boiler to lock out. During very cold weather, external condensate pipes can freeze. If this happens, the boiler will stop working. Contact a qualified technician for assistance as attempting to thaw frozen pipes incorrectly can cause damage.