State Water Heaters RESIDENTIAL ELECTRIC WATER HEATER, Руководство по обслуживанию

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RESIDENTIAL ELECTRIC WATER HEATER
SERVICE HANDBOOK
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Technical Training Department
9 of 36 Residential Electric Svc Handbook
Ashland City, Tennessee ©2004 STC082
GROUNDED ELEMENT TEST USING A MULTI-METER
Element
Beep
00.0
Check Continuity to the Tank
Note: An element’s resistance wire is
insulated so current cannot reach the
outside of the element and come in contact
with the water or the tank during normal
operation.
1.
Make sure power to the water heater
is turned OFF at the circuit breaker or
disconnect.
2. Remove the wires from the element
3. Set the meter to the
Ohms/Continuity
scale. Check the meter by placing the ends
of the probes against each other. If the
meter has an audible continuity check you
should hear a sound when this check is
done.
4. Place one probe on an element terminal
screw and the other on the tank. Be sure to
test both element screw terminals.
5. If the meter has an audible continuity
check and you hear the sound on either
screw terminal, the element is grounded
and must be replaced.
Note: If the meter does not have an
audible continuity check, notice the
meter reading before the probes are
placed together. Depending on the meter
the reading should be 1. Perform the
above test and if the reading changes,
the element is grounded and must be
replaced.
Tank Wall
1