Eco Check - State Water Heaters Utra-Force STC-077 Service Handbook

STEP 4 24 VAC TO ECO
STEP 4: CHECK FOR 24 VAC BETWEEN PIN 4 ON CONTROL BOARD TERMINAL CN3 AND
GROUND.
Condition:
• Disconnect CN3 plug from control board.
• On/Off switch is on.
Check for 24 VAC between pin 4 of the CN3 terminal on the control board and ground.
IF...
24 VAC is not present
24 VAC is present
State Water Heaters
Ashland City, Tennessee © 2004
S U F S E R V I C E
T R O U B L E S H O O T I N G

ECO CHECK

THEN
replace the control board if Steps 1, 2, and 3 have been performed and the results
were successful.
continue to Step 5.
21
H A N D B O O K
Technical Training Department
STC-077