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Cleaning and Maintenance
NOTE: This water heater should only be serviced by qualified service personnel. Improper
handling may cause serious injury or property damage.
Be sure to unplug the water heater before cleaning and servicing it.
Cleaning
1. External cleaning
Gently wipe with a damp cloth dipped in a small amount of neutral cleaning agent, do not use
gasoline or other solutions. Finally, dry with a dry cloth to keep the water heater dry. Be careful
not to scrub with cleaners that contain abrasives (such as toothpaste), acids, chemical solvents
(such as alcohol), or polish agents.
2. Internal cleaning
The power must be turned off before cleaning the tank.
When cleaning, close the water inlet valve, open the water outlet valve, remove the safety
valve at the cold water inlet, drain the water in the tank, then open the water inlet valve and
rinse repeatedly for a few minutes until the net water is discharged.
Safety check
Check the safety valve once a month: pull the small handle of the safety valve. If water flows out,
it indicates that the safety valve is working properly. If no water flows out, please contact the
after-sales service department of Haier to repair or replace it.
Regular safety checks should be conducted by professional personnel. Remove scale of heating
pipe in time and replace magnesium rod.
Prolonged non-use
If you need to disable the water heater for a long time, follow this step:
1. Close the tap water valve.
2. Open the safety valve handle.
3. Open the hot water valve of the water heater to the maximum (if there are multiple hot water
outlets, it is recommended to open all to the maximum. Please note that you will not be scalded
by hot water at this time) and discharge the water in the tank. Note: Some buried wall pipes
cannot be discharged by users. Therefore, open the loose connection at the water outlet.
When using again, in order to avoid injury accidents, it is recommended to open the hot water
valve before opening the power switch of the water heater, to discharge the gas that may exist in
the pipeline from the pipeline. At this time, no smoking or other open flame is allowed near the
open valve. At the same time, it is necessary to carefully check whether all parts of the water
heater are in good condition and confirm that the tank is full of water before it can be put into use.
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