The Convection Fan Motor - Thermador SMW272 B Service Manual

Lower Oven Section

THE CONVECTION FAN MOTOR

Refer to Page 42 to access the convection fan
motor.
1. With no power applied, disconnect the motor
wire connectors from their terminals.
2. Set the ohmmeter to the R x 1 scale.
3. Touch the ohmmeter leads to the motor ter-
minals. The meter should indicate 12 Ω.
4. If the reading is not correct, remove and
replace the convection fan motor.
Convection Fan Motor
THE LAMP TRANSFORMER
Refer to Pages 56 to access the lamp transformer.
1. With no power applied, remove the wires
from the terminals of the lamp transformer.
2. Set the ohmmeter to the R x 1 scale.
3. Touch the ohmmeter leads to the primary
terminals. The meter should indicate 9 Ω.
4. Touch the ohmmeter leads to the secondary
terminals. The meter should indicate 2 Ω.
5. If the readings are not correct, remove and
replace the lamp transformer.
6
1
Page 62
SMW Oven Service Manual
10
Secondary
Winding
5
Primary
Winding