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5-1
COMPONENT TESTING
Before testing any of the components, perform
the following checks:
• The most common cause for control failure is
corrosion on connectors. Therefore, discon-
necting and reconnecting wires will be nec-
essary throughout test procedures.
• All tests/checks should be made with a VOM
or DVM having a sensitivity of 20,000 ohms-
per-volt DC, or greater.
• Check all connections before replacing com-
ponents, looking for broken or loose wires,
failed terminals, or wires not pressed into
connectors far enough.
• Resistance checks must be made with power
cord unplugged from outlet, and with wiring
harness or connectors disconnected.
WARNING
Electrical Shock Hazard
Disconnect power before servicing.
Replace all parts and panels before operating.
Failure to do so can result in death or electrical shock.
Refer to page 4-4 for the procedure for servic-
ing the control and cooling fan thermal switches.
1.
Unplug range or disconnect power.
2.
Turn off gas supply to range.
3.
Disconnect one of the wires from the ter-
minals of the thermal switch you are test-
ing.
4.
Set the ohmmeter to the R x 1 scale.
5.
For the control thermal switch (N.C.)
,
touch the ohmmeter test leads to the ter-
minals. The meter should indicate conti-
nuity (0
Ω
).
6.
For the cooling fan thermal switch
(N.O.)
, touch the ohmmeter test leads to
the terminals. The meter should indicate
an open circuit (infinite).
CONTROL & COOLING FAN
THERMAL SWITCHES
Control Thermal Switch (N.C.)
Opens @ 96
°
C (205
°
F)
Closes @ 74
°
C (165
°
F)
Cooling Fan Thermal Switch (N.O.)
Closes @ 70
°
C (158
°
F)
Opens @ 60
°
C (140
°
F)
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