State Industries STC-074 specifications Test 10 Main Burner Ignition for Less than 5 Seconds

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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
no extended main burner igntion	check wiring and plug connections of HSI assembly
	check wiring and plug connections of HSI assembly
	plug 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 main burner ignition	replace ignition control board

Technical Training Department	35	©2003
	35

Ashland City, Tennessee

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Contents Service Handbook Table of Contents SBN Service Handbook Introduction Qualifications Custom Commercial Storage Tank Model Number Break DownInstallation Considerations Top and Front Views of Minimum Clearances To CombustiblesExterior Clearance Required Exterior ClearancesComb AIR Make-Up Air Direct Communication Not Direct Vent Make-Up Air Vertical Ducts Make-Up Air Horizontal DuctsContaminated Air Air for Combustion Flammable ItemsGas Valve Outlet View Venting Venting Atmospheric Multiple HeatersNine Rules for Good Vents SBN Tank Type Commercial GAS Water Heater Service Handbook SBN Tank Type Commercial GAS Water Heater Service Handbook Type B GAS Vent Multiple Gas Fired Tank-Type HeatersTechnical Dataventing Sequence Top ViewFront View of Water Heater SBN Tank Type Commercial GAS Water Heater Service Handbook HSI Integrated Ignition Control Board Lower Front View of SBN Water Heater HSIWiring Diagram ECOElectrical Sequence of SBN Water Heater Operation PRE-SERVICE Checklist Conditions Water Heater Control Ignition Control BoardFlash Codes of Diagnostic Indicator Test 2 Polarity CheckTest 2 Polarity Check Test 3 Continuity Check High Limit ECOTest 4 Upper Temperature Probe Continuity Check Test 3 Continuity Check of High Limit ECOIs indicated Is not presentTest 5 Calling for Heat no Inducer Operation Water Heater ControlCheck to Inducer Test on Ignition Board 4 Pin Receptacle E4 Test 6 Inducer ON-NO Ignition VAC Check of Blower Prover/Low Gas Pressure CircuitVoltage is not present between E4, Pin Test 8 Igniter Heats no Main Burner Test of Igniter and gas valve circuitTest 9 Igniter Heats no Main Burner Continuity Check Of Gas Valve CoilTest 10 Main Burner Ignition for Less than 5 Seconds Flame Prover Circuit CheckTest 11 Water Heater Shutting OFF below Setting If… ThenDisplay Lights on Integrated Heater Control ECO SBN Tank Type Commercial GAS Water Heater Service Handbook Technical Training Department 120 154 180 199 200A 250A 275A 310A 366A 400A General Questions and Answers SBN Tank Type Commercial GAS Water Heater Service Handbook Draft Proving Pressure Switch Table