Flame Prover Check; Hot Surface Igniter - State Water Heaters SBN 71-120NE Service Handbook

SBN TANK TYPE COMMERCIAL GAS WATER HEATER
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.
E1, Pin 2 - From Flame Proving Rod
TEST 10
If...
no extended main burner igntion
still no extended main burner ignition
Technical Training Department
Ashland City, Tennessee
SERVICE HANDBOOK
Pin 2
Flame Prover Circuit Check
...then
plug and ignition board receptacles E1, Pin 2
replace ignition control board

Hot Surface Igniter

(Illustration of low NOx burner)
check wiring and plug connections of HSI assembly
check that HSI assembly is not cracked or dirty
check that flame prover will be in main flame
replace HSI assembly
35
Main Burner
©2003