American Water Heater STCE3-52/80/119 ユーザーズマニュアル

Servicing should only be performed by a Qualified Service Agent

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This table shows the approximate amp draw for the various heating elements used. First 
determine the actual rated wattage and voltage of the element being tested - see Heating 
Element Ratings on page 21. Then follow the Heating Element Amperage Test procedure on 
page 23 to measure amperage at each heating element. Compare the measured value to 
the values in the table below. Keep in mind there may be some variance between measured 
values and the values in this table due to fluctuations in voltage, temperature and the 
calibration of test instruments being used.

Service Note - Correct Elements: If the measured amp draw on any element is 
considerably less or more than the values given in the table above check the element rating 
to ensure it matches the water heater’s factory configuration - see Heating Element Ratings 
and Heating Element Configurations on page 21. All heating elements should have the 
same voltage and KW rating in a water heater. If an element is not the correct rating for the 
water heater being serviced it must be replaced with a properly rated heating element.
Service Note - Grounded Elements: Grounded elements on Surface Mount Control 
Models (Figure 1 page 8) can draw low amps because power is continuously present at one 
terminal on each element - see the wiring diagram on page 18. Power from the thermostat’s 
L4 terminal is always present at each element and can flow from a grounded element 
through the water to the storage tank. If the measured amps are considerably less than the 
values in the table above test those elements for grounding - see page 25. 

This table shows the approximate resistance (in ohms) for the various heating elements 
used. First determine the actual rated wattage and voltage of the element being tested - see 
Heating Element Ratings on page 21. Then follow the Measuring Resistance Test procedure 
on page 25 to measure the resistance of each heating element. Compare the measured 
value to the values in the table below. Keep in mind there will be some variance between 
measured values and the values in this table due to fluctuations in temperature and the 
calibration of test instruments being used.