Thermador C271 Service Manual - page 51

THE LAMP TRANSFORMER

Refer to pages 2-20 & 2-28 to access the lamp trans-

former.

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 ter-

minals. 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.

Primary 

Winding

Secondary 

Winding

10

6

1

5

THE CONVECTION FAN MOTOR

Refer to page 2-8 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 termi-

nals. The meter should indicate 12  

Ω

.

4.

If the reading is not correct, remove and replace

the convection fan motor.

Convection Fan Motor

Page 49