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RESIDENTIAL GAS AND ELECTRIC WATER HEATER
SERVICE HANDBOOK
A.O. Smith Water Products Company Training Department
©2002 Ashland City, Tennessee
33
Residential Electric – continued
C-2 service “No Hot Water” – continued
Test between the two element terminals
If …
… then
rated voltage is not present check wiring from control.
rated voltage is present • repeat Ohms resistance test of element
• check for water leaks in piping or fixtures.
Complaint: Water Too Hot
Conditions:
Tank water above thermostat setting +10°F
Power on
Voltage Check
Test between 4 and 2 or L4 and T2
If …
… then
rated voltage is present replace thermostat control.
lower than rated voltage is present test for grounded element.
no voltage is present test complete.