Inlet / Dhw / Operating Temperature / Exhaust Sensors; Suggested Corrective Actions - Westinghouse Premium WGRT 199 Series Installation, Start-Up, Maintenance, Parts, Warranty

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3. Inlet / DHW / Operating Temperature / Exhaust Sensors

Figure 56 - Inlet / DHW / Operating Temperature Sensors Error Analysis Tree
C. Suggested Corrective Actions
Problem
No electrical power to the water
heater
No water available when faucet is
opened
Hot water is not available when a
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 35 - Troubleshooting Chart
whl-004 Rev. 000 Rel. 013 Date 5.1.18
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 water heater have power (plugged in)?
2. Is the water heater 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 0.5
gallons (2.2L) per minute through the water heater?
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 water heater?
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.
Possible Remedies
1. Reset the plug.
2. Reset the circuit breaker.
3. If the display panel is blank, unplug the unit or
contact a qualified installer / 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 installer /
service technician.
4. Refer to error code information and contact a
qualified installer / 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. Have recirculation valves and/or plumbing
return line(s) installed and program the unit for
external recirculation mode.
2. Allow time for the cold water already in the
pipes to flow from the faucet.
Adjust the temperature setting.
Adjust the temperature setting.
1. This is normal operation – no action is
required.
2. Protect the water heater from freezing
temperatures or shut off and drain the unit.
This is normal operation – no action is required.