Enabling emergency mode

Has your heating or DHW heating stopped working?

With heat pump emergency mode, you have the option to use your booster/backup heater until your fault can be fixed. If your heat pump has an immersion heater, you will find instructions here on enabling emergency mode.

Important information:

Please note that emergency mode only provides electrical heating and should not be used permanently as it will be more costly to run than your heat pump. In such circumstances, a service engineer must be called out. Emergency mode is only intended as a bridging measure. Please call your installer or our technical helpline as soon as possible.

Key steps:

  • Enable emergency mode according to the instructions
  • Contact your installer or our technical helpline
  • Schedule a date for a service engineer to visit


A service engineer should always rectify the existing fault.

Enabling emergency mode increases electricity costs.