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9
Maintenance
Follow the service and maintenance procedures given throughout this manual and in component literature
WARNING
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
WARNING
and care of the appliance designated in Table 9A 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
WARNING
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.
Check all piping for leaks
Eliminate all system or appliance leaks.
WARNING
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 of the Genesis Installation and Operation
Manual.
Flue vent system and air piping
1. Check for gastight seal at every connection, seam of air
piping, and vent piping periodically inspected by a qualified
service agency.
Venting system must be sealed gastight
WARNING
to prevent flue gas spillage and carbon
monoxide emissions, which will result in
severe personal injury or death.
62
Installation & Operation Manual
Check water system
1. Verify all system components are correctly installed and
operational.
2. Check the cold fill pressure for the system. Verify it is
correct (must be a minimum of 12 PSI).
3. Watch the system pressure as the unit heats up (during
testing) to ensure pressure does not rise too high. Excessive
pressure rise indicates expansion tank sizing or performance
problem.
4. Inspect automatic air vents and air separators. Remove air
vent caps and briefly press push valve to flush vent. Replace
caps. Make sure vents do not leak. Replace any leaking
vents.
Check expansion tank
1. Expansion tanks provide space for water to move in and
out as the heating system water expands due to temperature
increase or contracts as the water cools. Tanks may be open,
closed, diaphragm or bladder type. See Section 4 - Water
Connections of the Genesis Installation and Operation
Manual for suggested best location of expansion tanks and
air eliminators.
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