Service manual

(111)
After we have determined that the correct AC
and DC power is available to the refrigerator,
we need to diagnose the 120 volt heating
element. Generally speaking, when a 120 volt
heating element does not deliver the proper
amount of BTU’s, it does not heat up at all. In
some cases, however, a heating element may
be just partially defective. In either case, the
troubleshooting steps are
the same to
determine if the element is at fault.
(112)
Remove the 120 volt power cord from the wall
outlet and gain access to the heater leads on
the printed circuit hoard by removing the
necessary protection covers.
(113)
Remove the leads and measure for proper
resistance across the two heater leads with a
properly calibrated ohm meter. Refer to
SERVICE BULLETIN 28 or the AES
TECHNICAL DATA SHEET on page A-6-28
to determine if the ohms value obtained is the
proper reading for the model you are working
on.
(114)
Shown here is an example of the information
available in this bulletin. As with most of our
electrical checks, an acceptable tolerance range
on the ohms valve obtained is 10 percent. If
the ohms value on the heating element does
not fall within the necessary tolerances, the
element is defective and must be replaced.
A-6-38