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SBN71-120 thru SBN85-390, SBD30-150/199 TANK TYPE COMMERCIAL
GAS WATER HEATER SERVICE HANDBOOK
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Ashland City, Tennessee 7002 ©
TEST 8 – IGNITOR HEATS .............. NO MAIN BURNER
TEST 8 IGNITOR HEATS......NO MAIN BURNER
........neht.......fI
short heat up time of IGNITOR
Check control box grounding.
Normal (Approximate 20 seconds) warm up - no ignition Check for 24V from E1, Pin 12 to ground during 4 second trial.
........Yes - Continue................No - Replace Ignition Board
No voltage present E4, Pin 12 to ground Replace ignition board
24 Volt was present from E1, Pin 12 to ground, but no
main burner
Check that air has been purged from gas circuit........check that
wiring and connections to gas valve and E1, Pin 9 are correct
.........check fo
r 24 VAC at E1, Pin 9 to ground during 4 second
trial for ignition.
24 V.
E1 PLUG TO
PIN 9
E1 PLUG TO
PIN 12