Part 14 - Annual Maintenance Procedures - Westinghouse WBRC 140W Series Installation Manual

Nothing appears on
the display control
panel and no other
appliance
components are
operating
Nothing appears on
the display control
communications is
panel, but the
lost from the control
appliance is
operating
Display repeatedly
Occurs when control
goes through
does not receive
initialization
sequence
Table 32 –Diagnostics and Suggested Corrective Actions
PART 14 – ANNUAL 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
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 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 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 8. If
any of these contaminates are in the room where the appliance is located, or combustion air is taken from one of the areas listed, the
contaminates 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.
Ensure service switch and/or circuit
breaker to appliance is turned ON
Is there 120V at the service switch
Is the ON/OFF switch inside the
Control is not appliance cabinet is turned on
receiving 120V
Check for 120V at the line voltage
power
terminal block located inside the
Inspect the fuse. Replace as
Check for loose connections and
Occurs when proper pin alignment / engagement
Cycle power off and on using
to the display appliance power switch and check for
Cycle power off and on using
appliance power switch and check for
signal from fan
appliance cabinet
necessary
on the control's plug
operation
operation
Turn on service switch or circuit breaker to
power appliance
Troubleshoot and correct the power supply to
the manual switch
Turn ON the manual power switch inside the
appliance cabinet
Correct wiring inside the appliance cabinet
using the wiring diagram in the installation
manual
Replace the fuse with the proper part found in
the replacement part section of this manual. If
fuse blows again, recheck the wiring per
diagram
Check for continuity on the wire harness from
the display to the control. See repair parts
section for proper replacement part.
Replace with new display module. See repair
parts section for proper replacement part.
Replace fan.
WHL-012 REV. 4.8.16
72