Ariston Thermal Overload / Overheat Shutdown

Humidifier or dehumidifier mode shuts off after a few minutes and will not restart for a while

Advertisements

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.

Advertisements

Possible Causes

Blocked air inlets or outlets, Fan motor overheating, High ambient temperature, Failing thermal protector on compressor or heater

How to Fix / Troubleshooting

Safety: Allow the unit to cool before touching internal components.

Steps:

  • 1. Improve airflow: Move the unit away from walls and obstructions. Clean filters and grilles.
  • 2. Check fan operation: Ensure the fan runs at full speed in both modes. Replace the fan motor if it is slow or stops intermittently.
  • 3. Ambient temperature: Avoid operating the unit in very hot, confined spaces.
  • 4. Thermal protectors: If the compressor or heater frequently trips its thermal protector, a technician should test and, if necessary, replace the compressor thermal protector or heater safety thermostat.
Advertisements

Repair Difficulty

Medium 3/5

Required Part

Fan Motor
Check Price on Amazon

We may earn a commission from links on this page.

Advertisements