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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 10 - MAIN BURNER IGNITION FOR LESS THAN 5 SECONDS
Conditions:
● Power On – plug connected
● Main Burner ignites for approximately 5
seconds then goes out.
● Tests 8 and 9 completed
● Note flash code on ignition board LED.
TEST 10
MAIN BURNER IGNITION FOR LESS THAN 5 SECONDS
.........neht.......fI
No extended gulp ylbmessa ISH fo snoitcennoc gulp dna gniriw kcehCnoitingi renrub niam
and ignition board receptacles E1, Pin 2.......Check that HSI
assembly is not cracked or dirty......Check that flame prover
will be in main flame ......................Replace HSI assembly
Still no extended draob lortnoc noitingi ecalpeRnoitingi renrub niam
E1, Pin 2 - From Flame Proving Rod
Hot Surface IGNITOR
(Illustration of low NOx burner)