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Virginia HollandAug 16, 2025
Why is my Mitsubishi Electric EHPT20Q-VM2EA Heating System not reaching the set temperature?
- KKatherine AndersonAug 16, 2025
If the heating system isn't reaching the set temperature, first check if prohibit, schedule timer, or holiday mode is selected and adjust the settings as needed. Ensure the temperature sensor is in a suitable room. Also, check the heat pump. Inspect the booster heater thermostat and reset if safe. Examine the booster heater breaker and reset if safe. If the thermal cut-out tripped and cannot be reset, contact your Mitsubishi Electric dealer. Ensure the heat emitter surface area is adequate. Check the plumbing/wiring to the 3-way valve. If using wireless control, check/replace the battery.
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