Part 10 - Shutdown; Shutdown Procedure; Vacation Procedure; Failure To Operate - Westinghouse WGR050NG076 Installation Instructions Manual

PART 10 – SHUTDOWN
A. SHUTDOWN PROCEDURE
If the burner is not operating, lower the set point value to 70
blower to stop, so all latent combustion gases are purged from the system. This should take a maximum of 300 seconds (5 minutes).
B. VACATION PROCEDURE
If there is danger of freezing, change the set point to 70

"Shutdown Procedure".

C. FAILURE TO OPERATE
Should the burner fail to light, the control will perform two more ignition trials prior to entering a lockout state. Note that each
subsequent ignition trial will not occur immediately. After a failed ignition trial, the blower must run for approximately 10 seconds to
purge the system. Therefore, a time period of approximately 40 to 90 seconds will expire between each ignition trial.
If the burner lights during any one of these three ignition trails, normal operation will resume. If the burner lights, but goes off in about 4
seconds, check the polarity of the wiring. See electrical connection section.
If the burner does not light after the third ignition trial, the control will enter a lockout state. This lockout state indicates that a problem
exists with the water heater, the controls, or the gas supply. Under such circumstances, a qualified service technician should be
contacted immediately to properly service the water heater and correct the problem. If a technician is not available, pressing the
button will remove the lockout state so additional trials for ignition can be performed.
D. IMPORTANT NOTICE
It is extremely important that whenever work is performed on the plumbing system that either:

The water heater is powered off, or,

The water heater is valved off and isolated from the plumbing system.
Failure to take these measures could result in a dry-firing condition.
The water heater must be full of water and the system fully purged BEFORE powering the water heater. Performing any work in the
plumbing system without either powering off the water heater or isolating the water heater through the use of shut-off valves could
result in a condition referred to as "dry-firing". Dry-firing the water heater will damage the heat exchanger, and could result in property
damage, serious personal injury, or death. Such damages ARE NOT covered by water heater warranty.
PART 11 – TROUBLESHOOTING
A. ERROR CODE
An error code may occur during installation of the heater. This condition may lead to a lock out condition of the controller, which will
need to be manually reset by pressing the
B. HEATER ERROR
1. When an error condition occurs the controller will display an error code on the display module.
2. These error codes and several suggested corrective actions are included in Table 17.
3. In the case of |E07|, and |E13|, this error, if uncorrected, will go into a fault condition as described in Paragraph C.
C. LOCKOUT
1. When a fault condition occurs the controller display a fault code (Example: |F00|) on the display module.
2. Note the fault code and refer to Table 18 for an explanation of the fault code along with several suggestions for corrective actions.
o
F and wait for the burner to shut off. Continue to wait for the combustion
o
F. DO NOT turn off electrical power. If there is no danger of freezing, follow
NOTICE
button.
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WHL-001 REV. 9.3.14