Why is my Panasonic WH-SDC0509L6E5 system struggling to heat up?
- BBrandy EspinozaAug 18, 2025
Several factors can cause this. When the panel and floor are heated simultaneously, the warm water temperature might decrease, reducing heating ability. Low outdoor air temperature or a low preset water outlet temperature can also extend the heating time. Additionally, check if the discharge outlet or intake inlet in the outdoor unit is blocked by obstacles like snow.