Viking Compressor Start / Mechanical Fault

Loud humming or clicking from compressor area; ice maker not cooling properly

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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

Failing compressor, Defective start relay, Weak start capacitor, High head pressure from dirty condenser

How to Fix / Troubleshooting

Safety first: Disconnect power before accessing compressor components. Capacitors can retain charge; discharge safely.

  • Step 1 – Clean condenser: Ensure the condenser coil is clean and airflow is unobstructed to reduce compressor load.
  • Step 2 – Inspect start components: Remove the start relay and capacitor from the compressor. Test them with a multimeter/capacitance meter and replace if defective.
  • Step 3 – Listen after repair: Restore power and observe startup. If the compressor still hums and clicks off, the compressor may be locked and require replacement by a sealed system technician.

Do not repeatedly reset a tripping breaker or run a locked compressor; this can cause further damage.

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Repair Difficulty

Professional Required 5/5

Required Part

Compressor Start Relay
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