LP-447 Rev. 7.7.17
5
Part 3 - Maintenance Schedule
A. Service Technician
The following maintenance should be performed by a qualified
service technician annually:
General
• Attend to any reported problems.
• Inspect the interior of the appliance; clean and vacuum if
necessary.
• Clean the condensate trap and fill with fresh water.
• If applicable, check the condensate neutralizer and ensure it
is full of condensate neutralizing marble chips.
• Check for leaks: Water, gas, flue, and condensate.
• Verify exhaust vent and intake piping are in good condition
and sealed tight.
• Check exhaust vent and intake pipe bracing. Ensure bracing
is undamaged and in good condition.
• Check appliance water pressure, piping, and expansion tank.
• Check control settings.
• Check ignition electrode. Sand off any white oxide. Clean
and reposition.
• Check ignition and ground wiring.
• Check all control wiring and connections.
• Check burner flame pattern (stable and uniform).
Additional Items if Combustion or Performance is Poor
• Ensure appliance is connected to the proper gas type.
• Ensure appliance is connected to proper electrical power
supply.
• Check the water valves and gas shut-off valve. Ensure all are
fully open.
• Clean heat exchanger and flue ways.
• Remove burner assembly and clean burner head using
compressed air only.
The service technician should review service with the owner after
the maintenance items are completed.
B. Owner Maintenance
Periodically
• Check area around the appliance.
• Check and remove any blockage from the outdoor exhaust
vent and intake pipe terminations. DO NOT perform this
maintenance if exhaust vent and intake pipe terminations are
in difficult to reach locations.
• Check the temperature / pressure gauge.
Monthly
• VERY IMPORTANT:
Check / test carbon monoxide detectors to
ensure proper operation per the manufacturer’s instructions.
• Check exhaust vent and intake piping.
• Check exhaust vent and intake pipe bracing. Ensure bracing is
undamaged and in good condition.
• Check the pressure relief valve.
• Check the condensate drain system.
• If applicable, check the condensate neutralizer and ensure it is
full of condensate neutralizing marble chips.
Every 6 Months
Check appliance piping and gas supply piping for corrosion or signs of
potential leakage.
Part 4 - Maintenance Procedures
The appliance must be inspected and serviced annually, preferably
at the start of the heating season, by a qualified service technician.
In addition, the maintenance and care of the appliance as outlined
in this manual must be performed by the user/owner to assure
maximum efficiency and reliability. Follow the maintenance
procedures given throughout this manual. Failure to perform the
service and maintenance or follow the directions in this manual
could damage the appliance or system components, resulting in
substantial property damage, severe personal injury, or death.
Check the Surrounding Area
A. Daily Maintenance
To prevent the potential of substantial property damage, severe
personal injury, or death, eliminate the materials listed in Table
1 from the area surrounding the appliance and the vicinity of the
combustion air intake. If contaminates are found:
• Remove products immediately from the area.
• If contaminates have been there for an extended period, call
a qualified service technician to inspect the appliance for
possible damage from acid corrosion.
If products cannot be removed, immediately call a qualified service
technician to re-pipe the combustion air intake piping away from
the contaminated areas.
Combustible/Flammable Materials
Do not store combustible materials, gasoline, or other flammable
vapors or liquids near the appliance. If found, remove these materials
immediately.
Air Contaminates
If allowed to contaminate combustion air, products containing chlorine
or fluorine will produce acidic condensate that will cause significant
damage to the appliance. Read the list of potential contaminates and
areas likely to have these contaminates in Table 1, Part 2. If any of
these contaminates are in the room where the appliance is located, or
