E5
Montpellier Compressor Overload or Start Protection Error

Wine cooler shows E5, compressor may not start or may short-cycle

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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

Overheated compressor, Faulty compressor start relay or PTC, High condenser temperature due to blocked ventilation, Main PCB compressor drive fault

How to Fix / Troubleshooting

Safety: Unplug the unit before accessing the rear compressor compartment. Capacitors may hold charge; avoid touching exposed terminals.

  • Check ventilation: Ensure the Montpellier wine cooler has the required clearance at the rear and sides. Clean dust from the rear grille and condenser coil with a soft brush or vacuum.
  • Allow cooling: If the compressor is very hot to the touch, leave the unit unplugged for 30–60 minutes to cool down, then reconnect and observe if E5 returns.
  • Inspect start device: Remove the plastic cover on the side of the compressor to access the start relay/PTC and overload protector. Look for burn marks or rattling pieces inside the relay.
  • Test/replace start relay: If you have a compatible replacement start relay/overload kit for your Montpellier model, swap it in, ensuring firm connection to the compressor pins.
  • Check supply voltage: Verify that the outlet provides stable voltage within specification. Low voltage can trigger compressor protection.
  • If E5 persists: A seized compressor or faulty main PCB is possible. These are advanced repairs requiring a refrigeration technician with F-gas certification.
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Repair Difficulty

Professional Required 5/5

Required Part

Compressor Start Relay / Overload Protector
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