Machine Cleaning And Maintenance - Haier DSF80B E Operating Manual

Matters needing attention for usage·Machine cleaning and maintenance
Matters needing attention for usage
5. There must be an air switch installed in the circuit (depending on the power of the water heater). An earth
leakage protection switch must be installed in the customer's house, and the electric instruments should be
220V; for machines with the power of 6500W, ≥30A and copper core≥4 mm
power of 8000W, ≥40A and copper core≥6 mm
the air switch ≥40A and copper core≥6 mm
6. In case of ambient temperature lower than 0℃, ensure that water is not frozen in the water heater before
turning on the power supply of the water heater. If water is frozen in the water heater, the ice must be melted,
confirm that the water heater is not damaged with a water test before turning on the power supply for use.
7. The power line of the water heater shall be installed in a position where water can't spray it; do not turn on a
power switch with wet hands. If the power line is damaged, it must be replaced by cables which meet with
the corresponding requirements of the national regulations.
8. When a fault of the water heater takes place, contact our company or the specified repair & maintenance
department in a timely manner to facilitate the immediate recovery.
9. If you live in a high-rise building and the water pressure exceeds the rated pressure of the product (such as:
larger than 0.6 MPa), it is recommended to contact our after sales service department to buy a pressure relief
valve so that the water heater can be reliably utilized.

Machine cleaning and maintenance

External cleaning: cut off the power supply before cleaning the water heater. Use a small amount of a neutral
cleaning agent and a wet cloth and wipe the water heater gently (do not use gasoline or other solutions).
When cleaning is finished, towel off the water heater with a dry cloth until it is dry. Be aware to never use
cleaning agents with abrasives (such as toothpaste), acids, chemical solvents (such as alcohol) or metal
polishers to clean the water heater.
Shower nozzle and filter screen cleaning: if the shower nozzle doesn't spray fluently or there is a blockage,
an old toothbrush can be used to clear away sundries on the external surface of the shower nozzle and inlet
filter screen. Then, assemble the shower nozzle and the inlet filter screen. Check that the shower nozzle is
placed in the right position so as not to influence the spraying effect.
6
2
; a water-proofing earth leakage protection switch with
2
; power supply copper core ≥6 mm
2
; for machines with the
2
;