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Thomas BlevinsSep 23, 2025
Why does operation start automatically when the timer is not set on my Panasonic WH-ADC0509L3E5B?
- CCassandra WilliamsSep 23, 2025
The Sterilization timer has been set on your Panasonic Heat Pump.
To Next PageTo Next PageWhy does operation start automatically when the timer is not set on my Panasonic WH-ADC0509L3E5B?
The Sterilization timer has been set on your Panasonic Heat Pump.
Why does my Panasonic WH-ADC0509L3E5B Heat Pump system switch off automatically?
The system might be switching off due to its protection control. Specifically, if the water inlet temperature drops below 18 °C, the compressor will stop and the backup heater will turn on.
Why does my Panasonic WH-ADC0509L3E5B system operation switch off?
The Panasonic Heat Pump system might switch off due to the system's protection control. Specifically, if the water inlet temperature falls below 10 °C, the compressor will stop, and the backup heater will activate.
Why doesn't my Panasonic WH-ADC0509L3E5B Heat Pump heat up instantly?
If the system starts operating with cold water, it will take some time to heat the water.
Why is *1, *2 COOL mode unavailable on my Panasonic WH-ADC0509L3E5B Heat Pump?
The Panasonic Heat Pump system has locked to operate in HEAT mode only.
Why is the backup heater automatically turning on in my Panasonic Heat Pump even when disabled?
The backup heater might be automatically turning on, even when disabled, because of the protection control of the indoor unit heat exchanger.
Why is my Panasonic WH-ADC0509L3E5B making a loud refrigerant noise?
The loud refrigerant noise you hear is due to the protection control during the de-ice operation. This occurs when the outdoor ambient temperature is lower than -10 °C.
Why is there a delay when restarting my Panasonic WH-ADC0509L3E5B Heat Pump?
The delay you're experiencing after restarting your Panasonic Heat Pump is a built-in protection mechanism for the compressor.
Why does my Panasonic Heat Pump outdoor unit emit water or steam?
This is due to condensation or evaporation occurring in the pipes.
What causes loud refrigerant noise for several minutes in my Panasonic WH-ADC0509L3E5B?
This noise is caused by protection control during de-ice operation when the outdoor ambient temperature is lower than -10 °C.
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