Ideal
Localised Overheating of Thermostat Electronics
Thermostat or backplate feels unusually warm to the touch
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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
High load through internal relay, Poor ventilation behind thermostat, Loose terminal causing heat, Internal regulator stress
How to Fix / Troubleshooting
Safety first: If the thermostat is hot rather than warm, isolate power immediately.
Steps:
- 1. Check load: Ensure the thermostat is not directly switching multiple high‑current devices. Use a separate relay board if necessary.
- 2. Inspect terminals: With power off, remove the thermostat and check for discoloured or melted plastic around terminals. Tighten any loose screws.
- 3. Improve ventilation: Ensure the thermostat is not recessed into an unventilated cavity or covered by curtains.
- 4. Replace thermostat: If signs of heat damage are present, replace the thermostat and correct any wiring issues that caused overheating.
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Repair Difficulty
Medium
3/5
Required Part
Ideal Smart Thermostat Backplate
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