Ferroli Overheating of Internal Electronics

Thermostat plastic housing becomes noticeably warm to the touch during normal operation.

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.

Possible Causes

Thermostat installed above a radiator or heat source, Receiver switching loads beyond its rating, Poor ventilation behind thermostat, Internal component failure causing excess heat

How to Fix / Troubleshooting

Safety first: Overheating can lead to failure or fire risk. If the unit is very hot, switch off power immediately.

Check installation location:
- Relocate the thermostat away from radiators, fireplaces, or direct sunlight.
Verify load:
- Ensure the receiver is not directly powering pumps or electric heaters beyond its rated current.
Inspect for damage:
- If there is discoloration or smell of burning plastic, stop using the device.
Replace overheating unit:
- Install a new Ferroli smart thermostat or receiver and correct any wiring/load issues.

Repair Difficulty

Medium 3/5

Required Part

Ferroli Smart Thermostat Receiver

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