21
15.
MAINTENANCE AND SERVICE
The water heater should be checked at least once a year or as necessary by a licensed techni-
cian.
If repairs are needed, any repairs should be done by a licensed technician.
The water heater’s lifetime may be extended by frequent maintenance.
WARNING
Turn off the electrical power supply and close the manual gas control valve and the
manual water control valve before servicing.
• Clean the cold-water inlet filter. (Refer to diagram below.)
• Be sure that all openings for combustion air are not blocked. If blocked, remove any obstruc-
tion.
• Check that the opening for exhaust is not blocked. If blocked, shut off the water heater’s
combustion. After a while, remove any obstruction.
DO NOT
touch while burning because you
might get burnt due to high temperature.
• Check the gas pressure. (Refer to p.11.)
• Keep the area around the water heater clear. Remove any combustible materials, gasoline or
any flammable vapours and liquids.
UNIT DRAINING and FILTER CLEANING
1. Close the manual gas shut off valve.
2. Turn off the power supply to the water heater.
3. Close the manual water shut off valve.
4. Open all hot water taps in the house (Bathroom, kitchen, laundry room, etc.). When the resid-
ual water flow has ceased, close all hot water taps.
5. Have a bucket or pan to catch the water from the unit’s drain plugs.
Unscrew
the drain plugs
to drain all the water out of the unit.
6. Wait a few minutes to ensure all water has completely drained from unit.
7. Clean the filter: Check the water filter located within the cold inlet. With a tiny brush, clean
the water filter of any debris which may have accumulated and reinsert the filter back into the
cold water inlet.
8. Securely screw the drain plugs back into place.
Hand- tighten only.
3. REMOVE BY TURNING
COUNTERCLOCKWISE AND
THEN CLEAN AND REPLACE
1. TURN OFF THE WATER INLET
SUPPLY VALVE.
2. OPEN A HOT WATER TAP TO
RELEASE THE LINE PRESSURE.
filter
