Della Marta Degraded Peltier Module Performance

Thermoelectric (Peltier) Della Marta wine cooler cools only slightly or not at all, but fans are running.

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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

Aging Peltier module losing efficiency, Poor thermal contact due to dried thermal paste, Warped heatsink surfaces, Partial module failure

How to Fix / Troubleshooting

Safety: Unplug the unit and allow it to cool before working on the Peltier assembly.

  • Access module: Remove the rear panel to expose the Peltier module sandwiched between two heatsinks.
  • Disassemble carefully: Remove the clamping bracket and separate the heatsinks from the module.
  • Clean surfaces: Remove old thermal compound from the heatsinks and Peltier surfaces with isopropyl alcohol.
  • Install new module: Apply a thin, even layer of thermal paste and install a new Della Marta Peltier cooling module. Reassemble with even pressure on all screws.
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Repair Difficulty

Hard 4/5

Required Part

Peltier Cooling Module
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