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PART 10 – SHUTDOWN
A. SHUTDOWN PROCEDURE
If the burner is not operating, disconnect the electrical supply.
If the burner is operating, lower the set point value to 70
o
F and wait for the burner to shut off. Continue to
wait for the combustion blower to stop, so all latent combustion gases are purged from the system. This
should take a maximum of 40 to 90 seconds.
B. VACATION PROCEDURE
If there is danger of freezing, change the set point to 70
o
F. DO NOT turn off electrical power. If there is no
danger of freezing, follow “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 appliance, the controls, or the gas supply. Under such
circumstances, a qualified service technician should be contacted immediately to properly service the
appliance and correct the problem. If a technician is not available, depressing the {S4} button once will
remove the lockout state so additional trials for ignition can be performed. The unit will try to re-light once
every 6 minutes.
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 {S4} button. These following will
help the installer correct the problem before going into a lock out condition, which will require a manual
reset.
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 13.
3. In the case of |E00|, |E13|, and |E14| this error, if uncorrected, will go into a fault condition as described
in Paragraph C.
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