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22 MAINTENANCE CHECKLIST
Allowing the water heater to operate with a dirty combustion chamber will hurt operation. Failure to clean
the heat exchanger as required by the manual and dictated by the operating location could result in water
heater failure, property damage or personal injury.
Such product failures ARE NOT covered under warranty
Periodic maintenance should be performed once a year by a qualified service technician to assure that all the
equipment is operating safely and efficiently. The owner should make necessary arrangements with a qualified
heating contractor for periodic maintenance of the heater. The technician must also inform the owner that the
lack of proper care and maintenance of the water heater may result in a hazardous condition.
Maintenance Table
Inspection Activities
Check system and water heater piping for any sign
Near water
of leakage. Take off water heater cover and inspect
heater pip-
connections in water heater for any leaks or corro-
ing
sion
Check condition of all vent pipe and joints
Vent
Check to ensure vent termination not blocked or
obstructed
Check gas piping, test for leaks and signs of aging.
Gas
Record gas pressure and note pressure drop upon
start-up. Record O
Visual and
Do visual inspection of all system components and
Temperature
verify programmed temperature settings
Check wire connections and make sure they are
Connections
tight
Check burner tube and combustion chamber coils.
Combustion
Clean with nylon brush and vacuum. Avoid touching
chamber
white ceramic fiber. Also see maintenance section
of manual
Ensure spacing of igniter prongs are aligned
Spark igniter
properly.
Replace non-return valve every 5 th year. Be sure it
Replace NRV
is not leaking gas after reassembling.
Disconnect condensate hose and trap. Ensure no
Condensate
blockage, rinse and clean out. Fill completely again
trap
with fresh water and re-install
Relief Valve
Check to make sure it is not weeping
Listen to sound of the pump and fan. If either
Pump and
makes noise during operation, it is recommended
Fan
to replace the part.
Check the LWCO is not leaking and check for right
Low water cut-
pressure value by draining the water from the wa-
off
ter heater and comparing the value with a cali-
brated meter equipment
Question homeowner before maintenance if they
Homeowner
have any issues and after done, confirm activities
you performed during maintenance visit
Check the chemical additives and add or renew if
Chemical addi-
the mixing ratio is out of spec.
tions
.
at high and low fire
2
Date Last Completed
nd
rd
st
2
Year
3
1
Year
th
Year 4
Year
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