Part 13 - Troubleshooting - Westinghouse WBRC**140F Manual

PART 13 – TROUBLESHOOTING
PROBLEM
No electrical power to the
appliance
No water available when a
faucet is opened
Hot water is not available
when the faucet is opened.
The water temperature is
not hot enough or turns
cold during use.
It takes a long time before
hot water flows from the
faucet.
The water is not hot
enough.
The water at the faucet is
too hot.
A fan can be heard even
when the unit is not
operating.
White "smoke" can be seen
coming out of the exterior
exhaust gas vent.
Table 33 – Troubleshooting Chart
DIAGNOSTICS AND SUGGESTED CORRECTIVE ACTIONS
The appliance control is able to record information about the appliance's condition at the time of the five previous faults or errors. This
information is available to view in the Installer Mode under the History screen.
The following screens may be displayed when reviewing the appliance history. The table below also includes diagnostic information and
possible corrective actions.
Display
Nothing appears on
the display control
panel but the blower receiving power
runs at full speed
TROUBLESHOOTING CHART
POSSIBLE CAUSES
1. Is the plug on the power supply cord unplugged
from the electrical outlet?
2. Is electrical panel's 10 Amp circuit breaker
tripped?
3. Is the fuse on the circuit board good?
4. Is there a power outage to the home?
1. Is the water supply valve shut off at the meter
(do cold water faucets work)?
2. Is the water supply valve near the unit open?
3. Is the water pipe frozen?
4. Is an error code flashing on the display panel
(leak detected)?
1. Does the appliance have power (plugged in)?
2. Is the appliance turned ON?
3. Is an error code flashing on the display panel?
4. Is the gas supply valve open or shut off at the
meter (do other gas devices work)?
1. Is the faucet open enough to draw at least 0.6
gallons (2.3L) per minute through the appliance?
2. Is an error code flashing on the display panel?
3. Is the outlet water temperature set too low?
Is the faucet some distance from the appliance?
Is the water temperature set too low?
Is the water temperature set too high?
1. The fan continues to operate after the burner
shuts off to clear the exhaust vent of combustion
gases.
2. The fan may run to help prevent freezing.
Depending on the outside temperature, water
vapor can be produced as the exhaust is vented.
Condition
Check wiring for short circuit or
Control is not
Check transformer connection to the
control per wiring diagram. Check for
12V output of transformer
1. Reset the plug.
2. Reset the circuit breaker.
3. If the display panel is blank, unplug the unit or
contact an authorized service technician.
4. Contact the power company.
1. Open the closed supply valve.
2. Open the water supply valve.
3. Turn OFF the unit, close all water valves and the
gas valve. Contact an authorized service
technician.
4. Refer to error code information and contact an
authorized service technician.
1. Restore electrical power to the unit.
2. Press and hold the Power button to turn the unit
ON.
3. Refer to the Diagnostic and Error Codes section
in this manual.
4. Open the gas supply valve.
1. Open the faucet to allow more water flow.
2. Refer to the Diagnostic and Error Codes section
in this manual.
3. Adjust the outlet water temperature (refer to the
procedure in this manual).
a. Allow time for the cold water already in the pipes
to flow from the faucet.
b. Have recirculation valves and/or plumbing return
line(s) installed and program the unit for
recirculation mode.
Adjust the temperature setting.
Adjust the temperature setting.
1. This is normal operation – no action is required.
2. Protect the appliance from freezing temperatures
or shut off and drain the unit.
This is normal operation – no action is required.
Diagnostic
incorrect wiring
POSSIBLE REMEDIES
Possible Corrective Actions
Correct wiring per wiring diagram including
connection of transformer to the control
Replace transformer if it is receiving 120V, but
not outputting 12 VAC
WHL-015 REV. 5.20.16
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