Kermi Appliance Repair in Northgate & West Green

What does the Al038 error mean on a Kermi x-change dynamic heat pump?

The Al038 error indicates that the frequency converter drive has been deactivated. Check that all hydraulic valves are open, clean the water filter, and bleed air from the primary circuit. Verify the external contactor has 24V supply. Contact a technician if the issue persists.

What does the Al005 error mean on a Kermi x-change dynamic heat pump?

The Al005 error indicates that the minimum water flow on the primary circuit has fallen below the required threshold. Check that all hydraulic valves are open, clean the water filter, and bleed air from the primary circuit. If pipes may be frozen, allow them to thaw before operation.

What does the Al001 error mean on a Kermi x-change dynamic heat pump?

The Al001 error indicates a general error at the frequency converter (Power+ LED flashes red). This can occur due to communication issues between the frequency converter and refrigeration circuit controller. Perform a manual error reset, verify voltage and phase sequence, and check the compressor current draw. If the issue persists, contact a qualified heat pump technician.

What does the Al037 error mean on a Kermi x-change dynamic heat pump?

The Al037 error indicates incorrect compressor parameter values detected during auto-tuning. Perform a manual error reset. Contact a technician to verify compressor type and motor parameters.

What does Error 2 mean on a Kermi x-change fresh heat pump?

Error 2 indicates that the temperature sensor in the upper area of the storage tank connection is interrupted. LED 3 and LED 4 both show red. The heat pump and auxiliary heating will shut off automatically. Check the sensor cable connection and contact a technician to replace the sensor if damaged.

Can I replace a classic radiator with a towel radiator?

Yes, replacement is generally possible. Since classic flat radiators usually have side connections, specialised renovation solutions such as the Kermi Basic-D, Casteo-D, and Duett-D models are most suitable for replacement.

What are floor bracket radiators?

Floor bracket radiators mount directly to floors rather than walls, making them ideal for listed buildings, properties with floor-to-ceiling windows, or situations where wall mounting is not possible. The design includes integrated pipe routing and sensor placement options.

What does window-open detection do?

Window-open detection is a control feature that recognises when windows are opened and automatically lowers the room temperature setpoint to prevent unnecessary heating, saving energy while maintaining comfort.

What is Kermi therm-x2 technology?

Therm-x2 is a patented technology that uses serial flow through multi-layer flat steel panel radiators. The front panel heats first, then rear panels activate as demand increases. This results in heating periods that are up to 25% shorter and enables energy savings of up to 11%.

Does Kermi offer remote diagnostics for heat pumps?

Yes, once connected to the internet, Kermi x-change heat pumps support remote maintenance and diagnostics. You can check your heat pump from a PC, tablet, or smartphone, and simple malfunctions or software updates can be handled remotely without requiring an on-site visit.