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10 Maintenance (continued)
Follow the service and maintenance procedures given throughout this manual and in component literature
shipped with the appliance. Failure to perform the service and maintenance could result in damage to the
appliance 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 appliance should be inspected annually only by a qualified service technician. In addition, the maintenance
and care of the appliance designated in Table 10A and explained on the following pages must be performed to
assure maximum appliance efficiency and reliability. Failure to service and maintain the appliance and system
could result in equipment failure.
Electrical shock hazard – Turn off power to the appliance before any service operation on the appliance 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 appliance area
1. Verify that appliance area is free of any combustible
materials, gasoline and other flammable vapors and liquids.
Inspect appliance interior
1. Remove the outer access panels and inspect the interior of
the appliance.
2. Vacuum any sediment from inside the appliance and
components. Remove any obstructions.
Inspect condensate system
1. Inspect the condensate drain line, condensate PVC fittings,
and condensate trap on an annual basis.
Eliminate all system or appliance leaks.
Continual fresh makeup water will reduce
appliance life. Minerals can build up in
sections, reducing heat transfer, overheating
heat exchanger, and causing heat exchanger
failure. Leaking water may also 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 3 - Gas
Connections.
Check all piping for leaks
ƽ WARNING
ƽ WARNING
ƽ WARNING
ƽ WARNING
Figure 10-1_Condensate Trap
Flush condensate trap with water
1. Remove the four (4) screws securing the top cover to the
condensate trap and remove the cover (reference FIG.10-1).
2. Locate the plastic ball inside the float tube. Verify there is
nothing under the ball causing it to not seat properly.
3. If necessary, flush with fresh water until the water begins to
pour out of the drain.
4. Replace the top cover on the condensate trap.
5. Replace the four (4) screws removed in Step 1.
Installation & Operation Manual