1) The water heater is not using the highest power stop heating (for electric water heaters with power conversion function). Turn the power transfer switch to the maximum power shift.
2) The power cable connector is in poor contact. Repair or replace the connector.
3) The scale of the electric heat pipe is too thick or damaged. Treat or replace the electric heat pipe.
4) There are two or three groups of heat pipes in the electric water heater, and the circuit of a certain group has a problem. Repair or remove the fault.
[Tips]
Encounter the problem of electric water heater heating time is too long, first budget the heating time under normal circumstances, if the electric water heater heating time in the normal range is no big problem, if it exceeds the normal time, then it is necessary to find out the reason, and do a good job of electric water heater maintenance work. The water storage electric water heater gradually heats the water in the inner tank through the heating tube. The length of the heating time depends on the size of the inner tank capacity and the power of the heating tube, water temperature, environmental temperature and other factors. Generally in winter, the heating time of the storage electric water heater will become longer.