Heat Pump Making Loud Noise
The heat pump outdoor unit producing excessive vibration, buzzing, rattling, or humming.
What Is Causing This?
- 1Fan blade hitting debris or ice
- 2Loose mounting or worn anti-vibration feet
- 3Compressor reaching end of life
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 inspect the fan, compressor, and mountings. They will clear debris, tighten fixings, replace worn parts, and check noise levels comply with regulations.
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
Keep the area around the outdoor unit clear. Check anti-vibration mounts annually. Have the system serviced to catch wear early.
Related Problems
Other Heat Pump Installer Problems
The heat pump is running but not producing enough heat to warm the house or hot water.
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.
Rooms not getting up to the temperature set on the thermostat, even after the heat pump runs for a long time.