SBN TANK TYPE COMMERCIAL GAS WATER HEATER
SERVICE HANDBOOK
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.
Hot Surface Igniter
Pin 2
Main Burner
E1, Pin 2 - From Flame Proving Rod
(Illustration of low NOx burner)
TEST 10
Flame Prover Circuit Check
If… | ...then |
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no extended main burner igntion | check wiring and plug connections of HSI assembly | |
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| plug and ignition board receptacles E1, Pin 2 |
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| check that HSI assembly is not cracked or dirty |
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| check that flame prover will be in main flame |
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| replace HSI assembly |
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still no extended main burner ignition | replace ignition control board |
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Technical Training Department | 35 | ©2003 |
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Ashland City, Tennessee
