Blastcool
Compressor Start Failure / Overload Cycling
Clicking sound and brief compressor hum, then silence, repeating every few minutes.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Weak compressor, Failed start relay/PTC, Low supply voltage, Seized compressor
How to Fix / Troubleshooting
Safety: Disconnect mains power before testing compressor components.
- Check supply voltage: Measure voltage at the outlet under load. Correct any wiring or extension cord issues.
- Inspect and replace start device: Remove and test the Blastcool compressor start relay/PTC. Replace if out of spec or visibly damaged.
- Allow compressor to cool: Leave the unit unplugged for an hour, then retry. Persistent overload cycling suggests internal compressor problems.
If a new start device does not resolve the issue, the compressor is likely failing mechanically and must be replaced by a refrigeration technician.
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Repair Difficulty
Hard
4/5
Required Part
Compressor Start Relay/PTC
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