Component Testing; Blower Motors; Oven Temperature Sensor - Whirlpool GBD307PD Manual

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.
WARNING
Electrical Shock Hazard
Disconnect power before servicing.
Replace all panels before operating.
Failure to do so could result in death or
electrical shock.

BLOWER MOTORS

Refer to page 4-4 for the procedure for servic-
ing the upper & lower blower motors.
1. Disconnect the electrical power to the
double oven.
2. Disconnect the wires from the blower motor
terminals.
3. Set the ohmmeter to the R x 1 scale.
4. Touch the ohmmeter leads to the motor
terminals. The meter should indicate be-
tween 10 and 18 Ω.
• Check all connections before replacing com-
ponents, looking for broken or loose wires,
failed terminals, or wires not pressed into
connectors far enough.
• Voltage checks must be made with all con-
nectors attached to the boards.
• 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 panels before operating.
Failure to do so could result in death or
electrical shock.

OVEN TEMPERATURE SENSOR

Refer to page 4-8 for the procedure for servic-
ing an oven temperature sensor.
1. Disconnect the electrical power to the
double oven.
2. Disconnect the oven temperature sensor
connector from the oven connector.
3. Set the ohmmeter to the R x 1K scale.
4. Touch the ohmmeter leads to the sensor
connector pins. The meter should indicate
1080 Ω @ 70˚F.
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