TROUBLE SHOOTING MANUAL
MAINTENANCE
In order to ensure the water heater works with high efficiency, it is best to regularly clean up
the heating element to remove the scale on the heating element and at the bottom of the inner
tank. When unscrew the nut to drain the sewage from the outfall, the mixing valve should be
placed at the highest water position. After finished the sewage discharge, you can put in clean
and cold water inlet once again to do second cleaning until satisfied.
If the magnesium rod has been used up, you can replace it with same model and size. During
replacement, fix the nut of the new magnesium rods tightly, then put one washer, tighten the
nut of the outfall. In high-scale areas, users can install a descaling device before the cold
water inlet in order to extend the service life of the heating element. If the water heater will not
be used in long time, please release the water inside to avoid damage of the internal
components.
Caution:
1.Please periodically check the effectiveness of the one-way valve every quarter.
Method is:
When the current is switched on, close the inlet and outlet valve, till the temperature
reaches a certain degree, one-way safety valve will automatically release the pressure
and the water will discharge from the hose which is normal state. If there is no such state,
please stop using immediately and send to the maintenance for repair.
2.Please periodically check the one-way pressure relief valve port every quarter.
Method is:
Open the inlet valve, turn the screw off the handle of the safety valve with screwdriver, and
then pull up the handle. There should be water flowing out from the pressure relief valve
port. If not, you must stop using it immediately and send to the maintenance for repair.
Hotwell
7
Malfunction Reasons Solution
Power supply is not connected Check the plug is connected to
socket or not
Indicator
lamp
is not on
Poor contact of inner wire
Indicator lamp failure
Overheat protection
Inlet cold water is too much
Thermostat failure
Heating element failure
Ask for a professional to repair
Adjust the mixing valve
Ask for a professional to repair
Outlet water
temperature
is low or cold