LAARS U.H.E. - Installation Manual - Manual (Page 39)

SECTION X: MAINTENANCE
DANGER
DO NOT ATTEMPT TO REPAIR GAS VALVE.
DO NOT ATTEMPT TO REPAIR IGNITION MODULE.
DO NOT ATTEMPT TO REPAIR VENTURI.
DO NOT ATTEMPT TO REPAIR THERMOSTAT BOARD.
DO NOT ATTEMPT TO REPAIR TRANSFORMER.
DO NOT ATTEMPT TO REPAIR PRESSURE SWITCH.
GENERAL
KEEP APPLIANCE AREA CLEAR AND FREE FROM COMBUSTIBLE MATERIALS, GASOLINE AND OTHER
FLAMMABLE VAPORS AND LIQUIDS.
Water heater maintenance includes periodic tank flushing and cleaning, and removal of lime scale. The unit should be
inspected and adjusted to maintain proper combustion. Refer to Table 5, “Suggested Maintenance Schedule”. A
periodic inspection of the venting system should be made.
MAINTENANCE SCHEDULE
Following are the instructions for performing some of the recommended maintenance. Unit inspection and adjustment
should be performed by a competent technician.
Suggested Maintenance Schedule
COMPONENT OPERATION INTERVAL REQUIRED
Tank Sediment Removal Monthly Flushing
Anode Rods Inspect Semi-Annually
Replace as
Required
Relief Valve Check Operation Semi-Annually
Proper
Operation
Blower Clean Inlet Screen As Required Soft Brush
Vent & Air
Intake System
Inspect Every 3 Months
Joints should
be sealed
Ignition System Inspect Annually
Clean of dust
and dirt
Vent Terminal
Free of Shrubs &
Debris
Monthly
Remove object
that caused
restriction
Combustion
System
Inspect Monthly Confirm S-OP
Condensate
Line
Inspect Monthly
Remove
restriction
Table 5.
FLUSHING WATER HEATER
1. Turn OFF the water heater electrical disconnect switch.
2. Open the drain valve and allow water to flow until it runs clean.
3. Close the drain valve when finished flushing.
4. Turn ON the water heater electrical disconnect switch.
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