S U F S E R V I C E H A N D B O O K
T R O U B L E S H O O T I N G
TRANSFORMER
STEP 2
120 VAC TO TRANSFORMER
STEP 2: CHECK FOR 120 VAC TO TRANSFORMER FROM PIN 1 AND 2 ON CONTROL BOARD CN4 TERMINAL.
Condition:
•Disconnect CN4 plug from control board.
•On/Off switch is on.
Check for 120 VAC between pin 1 and 2 at CN4 on the control board as illustrated above. Perform this test with the CN4 plug disconnected and the On/Off switch turned on.
IF… |
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120 | VAC is not present | check CN1 plug connection | |
replace control board if Step 1 has been performed and results were successful. | |||
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120 | VAC is present | reconnect CN4 plug to control board, continue to Step 3. | |
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State Water Heaters | 19 | Technical Training Department |
Ashland City, Tennessee © 2004 |
