American Water Heater STCE3-52/80/119 Benutzerhandbuch
OPERATION & SERVICE
Servicing should only be performed by a Qualified Service Agent
26
Heating Element Ground Test
1
Secure power to the water heater at the main breaker or disconnect switch.
2
Verify with an AC volt meter that there is not any voltage present at the Power Distribution Block (see
Figures 1 and 2 on pages 8 and 9) and at the two wiring terminals on the ends of all heating elements.
Figures 1 and 2 on pages 8 and 9) and at the two wiring terminals on the ends of all heating elements.
3
Disconnect both power wires from the terminals on the top of all heating elements to be tested.
4
Using an ohm meter: set the ohm meter to one of it’s lowest resistance ranges - 200 ohms or less initially.
An audible beep continuity test setting can also be used on ohm meters so equipped.
An audible beep continuity test setting can also be used on ohm meters so equipped.
5
Touch one of the ohm meter probes to one of the two heating element wiring terminals and the other probe
to a grounded surface on the water heater such as the water heater’s storage tank (use sand cloth if
necessary to remove any coating that may prevent metal to metal contact) or the water heater ground wire
connection. Check between the other heating element terminal and ground also - see the image below.
to a grounded surface on the water heater such as the water heater’s storage tank (use sand cloth if
necessary to remove any coating that may prevent metal to metal contact) or the water heater ground wire
connection. Check between the other heating element terminal and ground also - see the image below.
6
If there is infinite resistance - no continuity - between both heating element wiring terminals and ground the
heating element(s) is not grounded.
heating element(s) is not grounded.
7
If there is any resistance measured - there is continuity - between either heating element wiring terminal
and ground the heating element is defective and must be replaced. Ensure the voltage and KW rating of
the replacement heating element is the correct rating for the water heater being serviced - see Heating
Element Ratings and Heating Element Configurations on page 21.
and ground the heating element is defective and must be replaced. Ensure the voltage and KW rating of
the replacement heating element is the correct rating for the water heater being serviced - see Heating
Element Ratings and Heating Element Configurations on page 21.
Replacing Heating Elements
1
Secure power to the water heater at the main breaker or disconnect switch.
2
Verify with an AC volt meter that there is not any voltage present at the Power Distribution Block (see
Figures 1 and 2 on pages 8 and 9) and at the two wiring terminals on the ends of all heating elements.
Figures 1 and 2 on pages 8 and 9) and at the two wiring terminals on the ends of all heating elements.
3
Disconnect both power wires from the terminals on the top all heating elements being replaced.
4
Drain the water heater - follow the draining instructions in the Maintenance Section of Instruction Manual
that came with the water heater. If the Instruction Manual is not available copies can be obtained from the
manufacturers web site or by calling the toll free phone number on the back cover of this manual.
that came with the water heater. If the Instruction Manual is not available copies can be obtained from the
manufacturers web site or by calling the toll free phone number on the back cover of this manual.
5
Remove/install heating elements using a 1 1/2” six point socket. Install a new heating element gasket with
the new element. Replacement elements and gaskets can be obtained from local distributors or by calling
the toll free phone number on the back cover of this manual.
the new element. Replacement elements and gaskets can be obtained from local distributors or by calling
the toll free phone number on the back cover of this manual.
Checking an electric heating for any resistance or
continuity to ground. Touch one of the ohm meter
probes to one terminal on the end of a heating element
and the other probe to a grounded surface on the
water heater.
continuity to ground. Touch one of the ohm meter
probes to one terminal on the end of a heating element
and the other probe to a grounded surface on the
water heater.