When the electric water heater thermostat fails, it can be repaired in the following ways:
Observe the fault performance: understand the specific problems of the electric water heater, such as the water temperature is too high or too low, the heating time is abnormal, and the indicator light is abnormal.
Power off: Always turn off the power to the electric water heater before performing any repair operations to ensure safety.
Check the spring of the bimetal plate: check whether the spring plate is pressing the switch contact rod, if the pressure is too tight, you can use tweezers to bend it upward, so that the distance between the two is about 1 mm.
Clean the switch contacts: If normal, open the switch box and clean the contacts of the shrapnel insulation switch.
Check the indicator: If the indicator is on, it may be a problem with the electric tube or other parts. Replace if damaged; If the electric heat pipe is in poor contact, check whether there is corrosion or deformation in the power plug assembly.
Check the cable connection to the thermostat: Ensure that the cable connection to the thermostat is correct. If there is an error, reconnect it.
Other components: Check whether the power socket is deformed or corroded. If it is seriously damaged, replace it with a new one. At the same time, check whether the heating pipe is damaged, and replace it if there is any problem.
If you are not familiar with the internal structure and circuit of the electric water heater, it may be risky to repair it yourself. In this case, it is recommended to contact professional maintenance personnel or after-sales service, by them to repair and deal with, in order to avoid causing more serious damage or safety hazards.
In addition, in order to reduce the occurrence of thermostat failures, the daily use of electric water heaters should pay attention to the following points: regularly clean the scale and impurities inside the water heater; Do not switch the power supply frequently when in use, and avoid adding cold water quickly under high temperature; Operate according to the water heater's operating instructions; After the water heater is used for a period of time, replace the inner liner, safety valve and other components regularly.
If the electric water heater is still within the warranty period, try to contact the manufacturer or seller for maintenance, so as not to repair the warranty itself. At the same time, the purchase of electric water heaters should choose reliable quality products, and retain the relevant purchase vouchers and instructions.
