E5
Hansa Compressor Start / Overload Protection Fault

E5 error on display; compressor does not start or stops shortly after starting; clicking sound from rear control area.

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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

Failed compressor start relay or PTC, Open or weak compressor start capacitor, Overheating compressor causing overload to trip, Faulty main control board compressor driver

How to Fix / Troubleshooting

Safety first: Unplug the freezer. The compressor and start components can be very hot; allow them to cool before touching. Do not attempt to open the sealed refrigeration system.

Step-by-step checks:

  • 1. Listen and observe: After plugging in (for testing only), listen for a brief hum followed by a click and E5. This pattern suggests start device or compressor issues. Unplug again before proceeding.
  • 2. Access compressor compartment: Remove the rear lower cover to expose the compressor, start relay/PTC, and capacitor.
  • 3. Inspect start relay/PTC: Remove the plastic cover on the compressor terminals. Check the relay/PTC for burn marks, melted plastic, or rattling pieces inside when shaken. Replace if damaged.
  • 4. Test start capacitor (if fitted): Discharge the capacitor safely by bridging its terminals with a resistor. Then measure capacitance with a meter. If the value is far below the rating printed on the capacitor, replace it.
  • 5. Check compressor windings: With all wires removed from the compressor, measure resistance between the three pins. You should see three finite readings; any open circuit or direct short to ground (test from pins to compressor shell) indicates a failed compressor, which requires professional replacement.
  • 6. Control board output: If start components and compressor test good, the main control board may not be supplying proper voltage. This should be checked by a qualified technician due to live voltage exposure.

Warning: Do not bypass the overload or run the compressor without proper start components; this can cause fire or permanent damage.

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Repair Difficulty

Professional Required 5/5

Required Part

Compressor Start Relay/PTC
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