Thermador CM301B Service Manual page 79

Lit. No. 94-30-006B
P18
P1
P8
P7
P14
P15
Relay board transformer:
No fail code, no display at all. Board is dead.
Both cooling motors and halogen lights:
Will accept modes. In about 45 seconds F-34 will appear in the
upper oven or F-64 will appear in the lower oven because the
Coolingmotors did not come on to close the air switches and
signal the board. Additionally, the halogen lights in both ovens
will not work. All relays will close but the lights and motors
will not work.
Lower oven convection motor:
No fail code. The lower oven convection motor will not work.
The relay will snap closed.
Upper oven convection motor:
No fail code. The upper oven convection motor will not work.
The relay will snap closed.
Upper oven double line break relay coil:
No fail code. If double line break relay does not close, l1 (120
volts) will not reach upper oven bake, broil, convection ele-
ments.
Lower oven double line break relay coil:
No fail code. If double line break relay does not close, l1 (120
volts) will not reach upper oven bake, broil, convection
elements.
Page 77
CM Oven Service Manual