Use and Care Manual

65
PART 14 – ANNUAL MAINTENANCE PROCEDURES
Display
Condition
Diagnostic
Possible Corrective Actions
Nothing appears on the
display control panel, but
the appliance is operating
Occurs when communica-
tions is lost from the control
to the display
Check for loose connections and proper pin align-
ment / engagement on the control’s plug
Check for continuity on the wire harness from the
display to the control. See repair parts section for
proper replacement part.
Cycle power off and on using appliance power
switch and check for operation
Replace with new display module. See repair parts
section for proper replacement part.
Display repeatedly goes
through initialization
sequence
Occurs when control does
not receive signal from fan
Cycle power off and on using appliance power
switch and check for operation
Replace fan.
Table 30 – Diagnostics and Suggested Corrective Actions
Check the Surrounding Area
Combustible/Flammable Materials
Do not store combustible materials, gasoline, or other ammable vapors or liquids near the appliance. If found, remove these materials
immediately.
Air Contaminants
If allowed to contaminants combustion air, products containing chlorine or uorine will produce acidic condensate that will cause signicant damage
to the appliance. Read the list of potential contaminants and areas likely to have these contaminants in Table 8. If any of these contaminants are in
the room where the appliance 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 Appliance Cabinet is Closed
Ensure the appliance cabinet is closed. Tighten the two upper and lower screws to secure it. The cabinet must be closed while the appliance 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 appliance.
Check the Status of the Control Panel
Observe the Control Panel to ensure the appliance 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 appliance 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 appliance to operate correctly, contact your qualied service technician to inspect the
appliance and the vent system.
The appliance must be inspected and serviced annually, preferably at the start of the heating season, by a qualied service technician. In addition,
the maintenance and care of the appliance as outlined in this manual must be performed by the user/owner to ensure 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.
To prevent the potential of substantial property damage, severe personal injury, or death, eliminate all the materials listed in Table 8 from the area
surrounding the appliance and the vicinity of the combustion air intake. If contaminants are found:
ㆍ
Remove products immediately from area.
ㆍ
If contaminants have been there for an extended period, call a qualied 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.
DANGER
DANGER