Heat Pump Running Constantly
The heat pump never seems to switch off, running 24 hours a day and driving up electricity bills.
What Is Causing This?
- 1Set temperature too ambitious for the system capacity
- 2Heat loss from the building exceeding the pump's output
- 3Controls not configured correctly for the building type
How Urgent Is This?
This should be fixed in the coming weeks. Leaving it may allow the problem to worsen and cost more to repair.
What Needs to Be Done
A heat pump engineer will review the system controls, weather compensation curve, and building heat loss. They will optimise settings to reduce run time while maintaining comfort.
How Much Will It Cost?
National average estimate
Labour: £2,033 – £5,083 | Materials: £4,000 – £10,017
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Ask a QuestionHow to Prevent This
Insulate the property well to reduce heat demand. Use weather compensation controls. Set realistic target temperatures for heat pump systems.
Related Problems
Rooms not getting up to the temperature set on the thermostat, even after the heat pump runs for a long time.
Energy bills significantly higher than expected despite normal usage, suggesting heat is escaping from the property.
The heat pump is running but not producing enough heat to warm the house or hot water.
Other Heat Pump Installer Problems
The heat pump is running but not producing enough heat to warm the house or hot water.
The heat pump outdoor unit producing excessive vibration, buzzing, rattling, or humming.
Heavy ice or frost forming on the outdoor heat pump unit, particularly on the coils, that does not defrost.
The heat pump controller or display showing an error or fault code, and the system stopping or reducing output.