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SUF SERVICE HANDBOOK
TROUBLESHOOTING
Technical Training Department State Water Heaters
STC-077
28 Ashland City, Tennessee © 2004
120 VAC TO IGNITOR
STEP 10: CHECK FOR 120 VAC TO IGNITOR FROM PIN 1 AND 2 ON CONTROL BOARD
TERMINAL CN5.
Condition:
• Disconnect CN5 plug from control board.
• On/Off switch is on.
• Call for heat is activated.
• Perform test during ignitor warm up period.
STEP 10
120 VAC TO IGNITOR
IF... THEN
120 VAC is not present
replace the control board if Steps 7 through 9B have
been performed and results were successful.
120 VAC is present continue to step 11.