TROUBLESHOOTING FLOWCHART
APPLY POWER TO
APPLIANCE
REQUEST NO FOR HEAT PRESENT?
YES
|
|
|
|
|
|
|
|
|
IS | NO | WAIT FOR PRESSURE | ||||||
PRESSURE SWITCH | SWITCH TO OPEN | |||||||
PROVEN OPEN WITHIN |
|
|
| DISPLAY ERROR | ||||
|
|
| ||||||
5 SECONDS? |
|
|
| NUMBER 7 | ||||
YES |
|
|
|
|
|
|
|
|
|
|
|
|
|
| |||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
COMBUSTION |
|
|
|
|
| |||
FAN ON |
|
|
|
|
| |||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
IS |
|
|
|
|
| |||
PRESSURE SWITCH | NO | WAIT FOR PRESSURE | ||||||
PROVEN CLOSED |
|
|
| SWITCH TO CLOSE | ||||
|
|
| DISPLAY ERROR | |||||
WITHIN 5 |
|
|
| |||||
|
|
| NUMBER 6 | |||||
SECONDS? |
|
|
| |||||
YES |
|
|
|
|
|
|
|
|
|
|
|
|
|
| |||
ISNO
PRESSURE SWITCH
PROVEN OPEN WITHIN
5SECONDS?
YES
3 MINUTE
AUTOMATIC RESET
TIME DELAY
WAIT FOR PRESSURE
SWITCH TO OPEN
DISPLAY ERROR
NUMBER 7
ONE HOUR
AUTOMATIC RESTART
TIME DELAY
PREPURGE
COMBUSTION FAN
OFF
IS | NO | TURN OFF | ||||
COMBUSTION FAN, | ||||||
IGNITOR |
|
|
| DISPLAY ERROR CODE | ||
|
|
| ||||
OKAY? |
|
|
| NUMBER 8 | ||
|
|
|
|
|
| |
YES |
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
| ||
|
|
|
|
|
|
|
IGNITOR ON FOR |
|
|
|
| ||
|
|
|
| |||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| TURN OFF | |
|
| COMBUSTION FAN | |
COMBUSTION |
| AFTER | |
FAN OFF |
| DISPLAY ERROR 3 | |
GAS VALVE OPENS
COMBUSTION FAN
ON
MAIN
BURNER LIGHTS NO
LESS
YES
YES
WAIT FOR PRESSURE |
| NO |
| IS | ||
SWITCH TO CLOSE |
|
|
| PRESSURE SWITCH | ||
|
|
| PROVEN CLOSED | |||
DISPLAY ERROR |
|
|
| |||
|
|
| WITHIN 5 | |||
NUMBER 6 |
|
|
| |||
|
|
| SECONDS? | |||
|
|
|
|
|
|
|
AND IS SENSED DURING TRIAL FOR
IGNITION
GAS VALVE CLOSES
THAN 3 TRIES FOR IGNITION?
INTERPURGE
YES
IGNITOR TURNS OFF
ISYES
FLAME SENSE LOST?
NO
GAS VALVE CLOSES
NO |
|
| |
LOST | YES |
| |
LESS THAN 4 |
|
| |
|
| ||
TIMES? |
|
| |
|
|
| |
NO |
|
|
|
|
|
|
|
| IS | NO | WAIT FOR PRESSURE |
| ||
| PRESSURE SWITCH |
| ||||
| PROVEN CLOSED |
|
|
| SWITCH TO CLOSE |
|
|
|
|
| DISPLAY ERROR |
| |
| WITHIN 5 |
|
|
|
| |
|
|
|
| NUMBER 6 |
| |
| SECONDS? |
|
|
|
| |
| YES |
|
|
|
|
|
| IS | YES |
|
| ||
| REQUEST FOR HEAT |
|
|
| GAS VALVE OFF |
|
NO |
|
|
|
| ||
SATISFIED? |
|
|
|
|
| |
| Please Note: |
| The control continually monitors |
| internal circuits and external sensors. |
| Error codes noted above, and those for |
COMBUSTION FAN | |
OFF AFTER POST- | pages 30 through 32. |
PURGE DELAY |
33
