Suggested Corrective Actions - Westinghouse WBRC 140 Series Installation, Start-Up, Maintenance, Parts, Warranty

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C. Suggested Corrective Actions
Problem
No electrical power to the
boiler
No water available when 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
Domestic hot water is too hot
or not hot enough
House is not heating up
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
The internal pump is not
running
Pump or system noise
Table 31 - Troubleshooting Chart
DIAGNOSTICS AND SUGGESTED CORRECTIVE ACTIONS
The boiler control is able to record information about the boiler's condition at the time of the ten 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 boiler history. The table below also includes diagnostic information and possible
corrective actions.
Display
Nothing appears on the
display control panel
but the fan runs at full receiving power
speed
whl-648 Rev. 001 Rel. 003 Date 10.8.19
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 boiler have power (plugged in)?
2. Is the boiler 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 boiler?
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 boiler?
Is the water temperature set too high or low?
Is the CH temperature set too low?
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.
1. No electrical supply
2. The capacitor is damaged.
3. Pump is blocked by debris or dirt.
1. There is air in the system.
2. The inlet presssure is too low.
Condition
Check wiring for short circuit or incorrect
wiring
Control is not
Check transformer connection to the
control per wiring diagram. Check for 12V
output of panel wire.
1. Reset the plug.
2. Reset the circuit breaker.
3. If the display panel is blank, unplug the unit or
contact a qualified 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 a qualified service technician.
4. Refer to error code information and contact an
qualified 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).
1. Allow time for the cold water already in the pipes
to flow from the faucet.
2. 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 boiler from freezing temperatures or
shut off and drain the unit.
This is normal operation – no action is required.
1. Check the circuit breaker.
2. Replace the capacitor.
3. Use a screwdriver to rotate the rotor. Clean the
pump.
1. Bleed / purge air from the pump / system.
2. Increase the inlet pressure.
Diagnostic
Correct wiring per wiring diagram including
connection of transformer to the control.
Push the Power button on the control panel.
Replace transformer if it is receiving 120V, but
not outputting 12 VAC.
Possible Remedies
Possible Corrective Actions