Immergas Repair Service in Ravensdale and Park Hall

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 462 error mean on an Immergas heat pump?

The 462 error on an Immergas heat pump indicates an absorption error or PFC overcurrent fault from the inverter. The power factor correction circuit is detecting excessive current draw. Switch off the heat pump at the isolator switch immediately. Do not attempt to reset. Contact a qualified technician for electrical system diagnosis. This fault may indicate serious electrical problems requiring professional repair.

What does the 425 error mean on an Immergas heat pump?

The 425 error on an Immergas heat pump indicates a supply voltage phase loss. This error applies only to three-phase models and indicates one of the electrical supply phases has been lost. Switch off the heat pump at the isolator switch immediately. Do not attempt to restart. Contact a qualified electrician to check the three-phase electrical supply. Operating with a missing phase can cause serious damage to the compressor motor.

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 46 error mean on an Immergas boiler?

The 46 error on an Immergas boiler indicates the low temperature safety thermostat has activated. This optional safety feature has detected temperature conditions outside normal parameters. Switch off the boiler at the electrical supply. Allow the boiler to return to normal operating conditions. Press the reset button once. If normal conditions are restored, the boiler should resume operation. If the error persists, contact a qualified technician for thermostat inspection.

How do I switch my Immergas boiler between summer and winter mode?

Use the mode selector on the control panel or remote control to switch between modes. In summer mode, the boiler provides domestic hot water only and central heating is disabled. In winter mode, both domestic hot water and central heating are enabled. If using a CAR remote control, turn the main selector to the desired position. The display will show the current mode. Some models use icons: a sun or umbrella symbol for summer mode and a snowflake symbol for winter mode.

Why does my Immergas boiler keep losing pressure?

Frequent pressure loss typically indicates a problem that requires professional diagnosis. Common causes include small leaks in the heating system pipework or radiator valves, a faulty pressure relief valve, or a problem with the expansion vessel. If you need to repressurise more than once every few months, contact a qualified technician to identify and repair the underlying cause. Do not ignore persistent pressure loss as it can lead to boiler damage or system failure.

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.

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.

How do I repressurise my Immergas boiler?

Locate the filling loop beneath or near your boiler. Open both valves slowly to allow cold mains water into the system while watching the pressure gauge. When it reaches between 1.0 and 1.2 bar, close both valves securely.