Amana Overheating Thermostat Electronics

Thermostat backplate or surrounding wall feels unusually warm

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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 installed above warm air duct or heat source, Excessive current draw through thermostat (improperly switching line voltage), Internal component failure causing heat buildup

How to Fix / Troubleshooting

Safety first: Turn off power to the HVAC system before removing the thermostat. Do not ignore signs of overheating.

  • Step 1 – Inspect location: Ensure the thermostat is not directly above a supply register, return grille, or other heat source.
  • Step 2 – Remove thermostat and inspect: Look for discoloration, burnt smell, or melted plastic on the back of the thermostat or wall plate.
  • Step 3 – Verify low-voltage only: Confirm that only low-voltage (24V) wires are connected. Amana smart thermostats must not be used to switch line voltage circuits directly.
  • Step 4 – Replace thermostat: If there are any signs of overheating damage, replace the thermostat immediately.

When to call a professional: If you suspect incorrect wiring (line voltage on a low-voltage thermostat), contact an electrician or HVAC technician immediately.

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Repair Difficulty

Medium 3/5

Required Part

Amana Smart Thermostat Assembly
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