State Industries STC-077 dimensions VAC from Transformer

Models: STC-077

1 46
Download 46 pages 13.03 Kb
Page 21
Image 21

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 (CONTINUED)

STEP 3

24 VAC FROM TRANSFORMER

STEP 3: CHECK FOR 24 VAC AT TRANSFORMER CN4 PLUG ON CONTROL BOARD. Condition:

CN4 is plugged into control board.

On/Off switch is on.

Insert meter probes into back of CN4 plug on pins 3 and 4 (blue and yellow wires) with CN4 plugged in and power on.

IF…

THEN

 

 

 

 

 

 

24

VAC is not present

replace transformer if Steps 1 and 2 were performed and results were successful.

 

 

 

24

VAC is present

continue to Step 4.

 

 

 

Technical Training Department

20

State Water Heaters

STC-077

Ashland City, Tennessee © 2004

Page 21
Image 21
State Industries STC-077 dimensions VAC from Transformer