lp-673 Rev. 000 Rel. 001 Date 8.30.18
49
Part 13 - Maintenance
The water heater 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 water
heater 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 water heater or system
components, resulting in substantial property damage, severe
personal injury, or death.
Check the Surrounding Area
To prevent the potential of substantial property damage, severe
personal injury, or death, eliminate all the materials listed in Table
7. from the area surrounding the water heater and the vicinity of
the combustion air intake. If contaminates are found:
•
Remove products immediately from area.
•
If contaminates have been there for an extended period,
call a qualified service technician to inspect the water
heater 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 water heater. 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 water heater. Read the list of potential
contaminates and areas likely to have these contaminates in Table 7.
If any of these contaminates are in the room where the water heater
is located, or combustion air is taken from one of the areas listed,
the contaminants must be removed immediately or the intake pipe
must be relocated to another area.
Ensure the Water Heater Cabinet is Closed
Ensure the water heater cabinet is closed. Tighten the two upper
and lower screws to secure it. The cabinet must be closed while the
water heater is running.
Check the Power Source
Make sure the power cord is properly connected. The main power
line is connected to the manual switch box inside the water heater.
Check the Status of the Control Panel
Observe the Control Panel to ensure the water heater is powered
on, and to check for any error codes. Clear any debris from the panel.
Check Exhaust Vent and Intake Pipe Terminations
Verify that the water heater exhaust vent and intake pipe
terminations are clean and free of obstructions. Remove any debris
from the exhaust vent or intake pipe openings. If removing the
debris does not allow the water heater to operate correctly, contact
your qualified service technician to inspect the water heater and the
vent system.
Check Exhaust Vent and Intake Piping
Visually inspect the exhaust vent for any signs of blockage, leakage,
or deterioration of the piping. Inspect the exhaust vent bracing.
Ensure bracing is undamaged and in good condition. Notify a
qualified service technician immediately if any problems are found.
Failure to inspect the venting system and have it repaired by a
qualified service technician can result in vent system failure, causing
severe personal injury or death.
Visually inspect the intake piping for any signs of blockage. Inspect
the entire length of the intake pipe to ensure piping is intact and all
joints are properly sealed. Inspect the intake pipe bracing. Ensure
bracing is undamaged and in good condition. Notify a qualified service
technician if any problems are found.
Check Pressure Relief Valve
•
Visually inspect the primary pressure relief valve and discharge
pipe for signs of weeping or leakage.
•
If the pressure relief valve often weeps, the expansion tank may
not be operating properly. Immediately contact a qualified
service technician to inspect the water heater and system.
Check the Condensate Drain System
•
While the water heater is running, check the discharge end of
the condensate drain tubing. Ensure no flue gas is leaking from
the condensate drain tubing by holding your fingers near the
opening.
•
If you notice flue gas leaking from the opening, this indicates
a dry condensate drain trap. If problem persists, contact a
qualified service technician to inspect the water heater and
condensate line and refill the condensate trap.
•
If applicable, check the condensate neutralizer and ensure it is
full of condensate neutralizing marble chips.
Check Primary and Gas Piping
•
Remove the water heater cover and perform a gas leak
inspection following Operating Instructions, page 2, this
manual. If gas odor or leak is detected, follow procedures on
page 2. Call a qualified service technician.
•
Visually inspect for leaks around the internal water heater
water connections and around the heat exchanger. Visually
inspect the external system piping, circulators, and system
components and fittings. Immediately call a qualified service
technician to repair any leaks
Check Wall Hung Model Brackets
•
Check wall mount brackets. Ensure the brackets and mounting
materials are secure and in good condition. Remount the water
heater if necessary.
Have leaks fixed at once by a qualified service technician. Failure to
comply could result in substantial property damage, severe personal
injury, or death.
Operate Pressure Relief Valve
•
Before proceeding, verify that the relief valve outlet has been
piped to a safe place of discharge, avoiding any possibility of
scalding from hot water.
•
Shut power off to the water heater. To avoid scalding, wait for
water heater to cool before operating the relief valve.
To avoid water damage or scalding due to relief valve operation, a
discharge line must be connected to the valve outlet and directed
to a safe place of disposal. This discharge line must be installed
by a qualified service technician or heating/plumbing installer in
accordance with the water heater installation manual. The discharge
line must be terminated so as to eliminate possibility of severe burns
or property damage should the valve discharge.