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STEP 11
STEP 11. WIRE HARNESS TEST. Test for 24 VAC between terminal 24V on the IID
module, and 24V GND.
IF
24 VAC is not present:
24 VAC is present:
Note: This test may be easier to conduct by removing the red wire from the IID terminal. Test for 24
VAC between the red wire and ground. Reconnect the red wire to the 24V terminal after the test.
Technical Training Department
Ashland City, TN ©2003
SBD TANK TYPE HEATERS
SERVICE HANDBOOK
WIRE HARNESS TEST
THEN
Check the wiring harness.
Go to step 12.
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