Delta Dore Overheating of Internal Components

Thermostat or receiver feels unusually hot to the touch during normal operation.

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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

Receiver switching load above rated current, Poor ventilation around device, Loose high-current connection causing heating, Internal component failure

How to Fix / Troubleshooting

Safety first: If the device is very hot or there is a burning smell, switch off power immediately at the breaker and do not touch metal parts.

  • Check load rating: Confirm that the connected load (pump, electric heater) does not exceed the receiver’s maximum current rating. Use a contactor if necessary.
  • Improve ventilation: Ensure the receiver is not enclosed in insulation or tightly packed with other hot devices.
  • Inspect terminals: With power off, check for discolored or melted insulation at terminals, indicating overheating.

If overheating signs are present, the receiver or thermostat may be damaged and should be replaced by a qualified technician.

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Repair Difficulty

Hard 4/5

Required Part

Delta Dore RF Receiver Module
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