Component Testing; Door Switch; Oven Temperature Sensors - Whirlpool Polara GR556LRK Service Manual

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.
Disconnect power before servicing.
Replace all parts and panels before operating.
Failure to do so can result in death or electrical shock.

DOOR SWITCH

Refer to page 4-10 for the procedure for servic-
ing the door switch.
1. Unplug the refrigerated range or discon-
nect the power.
2. Set the ohmmeter to the R x 1 scale.
3. Touch the ohmmeter leads to the door
switch terminals. The meter should indi-
cate an open circuit (infinite).
4. Press the actuator button and the meter
should indicate continuity (0 Ω).

COMPONENT TESTING

Electrical Shock Hazard
• 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

OVEN TEMPERATURE SENSORS

Refer to page 4-13 for the procedure for servic-
ing the oven temperature sensors.
1. Unplug the refrigerated range or discon-
nect the power.
2. Set the ohmmeter to the R x 100 scale.
3. Touch the ohmmeter test leads to the
oven temperature sensor connector pins.
The meter should indicate between 1000
and 1100 Ω at 75˚F for both top and
bottom sensors.
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