Ferroli
Unstable Power Supply to Thermostat
Thermostat frequently loses time or resets after short power cuts; schedules become unreliable.
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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
Thermostat powered from a lighting circuit that is often switched off, Loose neutral or live connection to receiver, Shared circuit with high‑load appliances causing voltage dips, Failing internal power regulator
How to Fix / Troubleshooting
Safety first: Receiver may be connected to mains; isolate power before opening.
- Check supply circuit:
- Ensure the thermostat/receiver is fed from a permanent live circuit, not a switched lighting circuit.
- Inspect terminals:
- Tighten live and neutral connections inside the receiver.
- Consider a dedicated spur:
- Have an electrician provide a dedicated fused spur for the boiler and controls.
- If resets continue:
- The internal power supply may be failing; replace the Ferroli smart thermostat receiver.
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Repair Difficulty
Medium
3/5
Required Part
Ferroli Smart Thermostat Receiver Power Board
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