T&P Relief Valve Maintenance; Air Filter Maintenance - LG WH20S F5 Owner's Manual

T&P Relief Valve
Maintenance
!
DANGER
Before manually operating the relief
valve, make sure it will discharge in a
safe place. If water does not flow freely
from the end of the discharge pipe, turn
off the power to water heater and call a
qualified person.
At least annually, lift and release the lever
handle on water heater to ensure the
waterways are clear and the valve operates
freely.
28

Air Filter Maintenance

Clean the air filters when "Air filter check
( )" alarm appears on the display.
NOTE
• The air filter can be broken when it is
bended.
• When the air filter is not assembled correctly,
dust and other substance come into the unit.
1 Turn off the power by opening the circuit
breaker or removing the fuses.
2 Hold the knobs of the air filter, pull it and
remove it from the top cover.
3 Clean the filter with a vacuum cleaner or
with lukewarm water with neutral
detergent.
4 Dry the filter in the shade.
5 Insert the air filter into the top cover.
6 Check the top cover for correct assembly
of the air filter.
EN