Meross Moisture Ingress / Condensation

Thermostat display fogs up or shows condensation inside the screen, especially in bathrooms or humid areas.

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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 in high-humidity environment without adequate sealing, Poor wall insulation causing cold surface, Minor gasket failure around display

How to Fix / Troubleshooting

Safety: Turn off power before removing the thermostat; moisture and mains voltage are a dangerous combination.

Steps:

  • Dry the unit: Remove the thermostat from the wall and allow it to dry in a warm, dry room for 24 hours before re-energizing.
  • Improve location: Avoid installing the thermostat directly above showers, baths, or in unventilated bathrooms. Relocate to a drier wall if possible.
  • Seal wall opening: Seal large gaps in the wall box with non-flammable foam or sealant to reduce moist air flow from cavities.

Outcome: If condensation recurs or corrosion appears on the PCB, replace the thermostat and improve environmental conditions.

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Repair Difficulty

Medium 3/5

Required Part

Thermostat Housing and PCB
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