TM
Installation & Service Manual
12 Maintenance
WARNING
WARNING
WARNING
Follow the service and maintenance procedures given throughout this manual and in component literature shipped with the water heater. Failure to perform the service and maintenance could result in damage to the water heater or system. Failure to follow the directions in this manual and component literature could result in severe personal injury, death, or substantial property damage.
The water heater should be inspected annually only by a qualified service technician. In addition, the maintenance and care of the water heater designated in Table 12A and explained on the following pages must be performed to assure maximum water heater efficiency and reliability. Failure to service and maintain the water heater and system could result in equipment failure.
Electrical shock hazard – Turn off power to the water heater before any service operation on the water heater except as noted otherwise in this instruction manual. Failure to turn off electrical power could result in electrical shock, causing severe personal injury or death.
Address reported problems
1.Inspect any problems reported by the owner and correct before proceeding.
Inspect water heater area
1.Verify that water heater area is free of any combustible materials, gasoline and other flammable vapors and liquids.
2.Verify that air intake area is free of any of the contaminants listed in Section 1 of this manual. If any of these are present in the water heater intake air vicinity, they must be removed. If they cannot be removed, reinstall the air and vent lines per this manual.
Inspect water heater interior
1.Remove the front access cover and inspect the interior of the water heater.
Figure 12-1 Condensate Trap
2" PVC CAP WITH
BLOCKED DRAIN SWITCH
RETAINING SCREW
CONDENSATE DRAIN
CONDENSATE FROM HEAT EXCHANGER
REMOVABLE CAP
TO CLEAN OUT TRAP
Clean condensate trap
1.Remove the clean out cap on the bottom of the trap. Let the condensate and any debris drain out.
2.Replace the clean out cap.
3.Fill with fresh water until the water begins to pour out of the drain.
4.Resume operation.
WARNING The condensate trap must be filled with water during all times of water heater
operation to avoid flue gas emission from the condensate drain line. Failure to fill the trap could result in severe personal injury or death.
Check all piping for leaks
WARNING Eliminate all system or water heater leaks. Leaking water may cause severe property
damage.
1.Inspect all water and gas piping and verify to be leak free.
2.Look for signs of leaking lines and correct any problems found.
3.Check gas line using the procedure found in Section 7 - Gas Connections.
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