Toshiba Compressor Start Failure

Freezer starts then stops after a few seconds, repeating this cycle without cooling.

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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

Defective start relay or PTC, Weak compressor, Low supply voltage, Overheating compressor overload

How to Fix / Troubleshooting

Safety: Unplug the freezer before touching compressor components. High voltage is present.

Steps:

  • 1. Check supply voltage: Use a multimeter to ensure the outlet voltage is within Toshiba's specified range.
  • 2. Inspect start device: Remove the start relay/overload assembly from the compressor. Look for burn marks or a burnt smell.
  • 3. Test relay/PTC: Shake the relay gently; if it rattles or shows signs of melting, replace it with the correct Toshiba part.
  • 4. Compressor test: Measure winding resistance and check for shorts to ground. Abnormal readings indicate a failing compressor.
  • 5. Overload reset: Allow the compressor to cool for several hours and try again. If the overload trips repeatedly, further diagnosis or compressor replacement is needed.
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Repair Difficulty

Hard 4/5

Required Part

Compressor Start Relay / Overload Protector
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