Danfoss Heat Pump Troubleshooting Guide download pdf (Page 21)

VMIFB202

Vibrating protective sleeves on the pressure switches

Action:

Establish where the vibration noise occurs, if the vibration is in the protective sleeve one can prevent the vibration with insulating tape

for example

Vibration noise from the electrical installation

Action:

Check for electrical steps or similar devices screwed to the heat pump and wall. These can cause vibrations and noise.

The heat pump is not level

Action:

Check that the heat pump is level by using a spirit level, if necessary adjust the heat pump feet

Bubbling sound in the radiators

Action:

Bleed the radiators

Troubleshooting Guide Alarm Sound

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Danfoss Heat Pump Troubleshooting Guide Page 21