1. The auxiliary electric heating function of the water dispenser is invalid. At present, electric auxiliary heating technology is widely used in heat pump-assisted electric water dispenser. Electric auxiliary heating technology, ultra-low temperature rapid heating, strong effect, safety and reliability, can be used for a long time. If the electric auxiliary heating control circuit or electric auxiliary heating equipment cannot work normally, the heating capacity of the water dispenser will be insufficient when the ambient temperature is relatively low, and even when the environment is bad, the water dispenser will not heat at all.
2. If the filter is not cleaned in time for a long time, the air circulation inside will be blocked, and the heating effect of the water dispenser will be affected to some extent. Excessive dirt on evaporator and condenser will also reduce the heat transfer effect, resulting in a decrease in heating capacity and an increase in power consumption; The heating temperature is set too low. However, the door crack and hole in the wall of the drinking machine room are not blocked, or windows are often opened, which leads to the heat loss of the drinking machine, which will inadvertently cause the drinking machine mechanism to be warm and weak.