BTC 120-500 - AO Smith Water Heaters
BTC 120-500 - AO Smith Water Heaters
BTC 120-500 - AO Smith Water Heaters
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<strong>BTC</strong> TANK TYPE HEATERS<br />
SERVICE WORKBOOK<br />
STEP 11. WIRE HARNESS TEST. Test for 24 VAC between terminal 24V on the IID module,<br />
and 24V (GND).<br />
- If 24 VAC is not present, check the wiring harness.<br />
- If 24 VAC is present, reconnect the red wire to terminal 24V on the IID module and<br />
go to Step 12.<br />
Note: This test may be easier to conduct by removing the red wire from the IID terminal. Test for 24 VAC<br />
between the red wire and ground. Reconnect the red wire to the 24V terminal after the test.<br />
A.O. <strong>Smith</strong> <strong>Water</strong> Products<br />
Irving, Texas ©1998<br />
31<br />
Service Workbook<br />
Training Department
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