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VII. Component Testing/Test Procedures
VII. Component Testing/Test Procedures
(continued)
(continued)
Using Test Programs to Measure Heater/NTC Resistances
Using Test Programs to Measure Heater/NTC Resistances
HINT:
Because the flow
switch only closes when
water is flowing, the heater
resistance can only be
measured at the heater
terminals (not at the control
module).
HINT:
The NTC and
High Limit are contained
in the same part. When
either fails, replace
entire part #
165281
.
NOTE:
Open door to run
test program for fully-
integrated models.
Use dishwasher test program to fire up heater, then measure
dishwasher incoming current. If ~ 1.5A, heater, Hi-Limit or flow switch
has failed. Check voltage @ module (or timer) -- if 0V, module (or
timer) has failed.
For electronic models, current can also be measured in
red
heater wire
at control module (~ 9.5A). Since there can be more than one
red
wire,
check wiring diagram to select heater wire.
NOTE:
Flow
through heaters heat
water ~ 2ºF / minute.
