Demo Mode; Troubleshooting; Wiring Diagrams And Schematics - Thermador PO301 Service Manual

8

DEMO MODE

The display and lights will work on 120VAC when the black and red
wires are tied together.
9

TROUBLESHOOTING

Test with wire harness off at pin header or with circuits open.
Plug Pins Operates
X102 4, 5 Upper oven
and double line break
X103 2, 4 relay coil
X105 7 Upper door latch
motor
X105 6 Upper oven
convection motor
X105 1 Rotisserie motor
X106 1 (common), Upper oven door
6, 7 latch
X107 4, 5 Upper oven
sensor
X107 1, 2, 3 Cooling fan
motors
X207 1,4,5
X202 1, 2 Lower oven
and double line break
X203 3, 5 relay coil
Explanation
No fail code. If double line break relay
does not close, L2 (120 volts) will not
reach upper oven bake, broil,
convection elements.
Will accept all modes except self-
clean. When oven set to self-clean,
display will be on constantly, doors
will not lock and self-clean will not
start. E106 will appear.
No fail code. Lower oven convection
motor will not work.
No failure code. Rotisserie will not
rotate.
If latch position is not detected during
normal operation, E124/126 will be
displayed.
Controls function normal. When
sensor opens, E101 code will appear.
If sensor shorts, E104 will appear.
Cooling fan is on constantly.
Will accept modes. In ~45 seconds,
E118 will appear in upper oven
display or E218 will appear in lower
oven display when hall sensor does
not detect fan rotation.
No fail code. If double line break relay
does not close, L2 (120 volts) will not
reach lower oven bake, broil,
convection elements.
Service Manual for Thermador Professional Series Built-in Wall Ovens
Plug Pins Operates
X205 6 Lower door latch
motor
X205 1 Lower oven
convection motor
X206 1 (common), Lower oven door
6, 7 latch
X207 3, 6 Lower oven
sensor
X2 Sends display
signal to display
X2 Sends
communication
signals to display
Table 10 Troubleshooting
10

WIRING DIAGRAMS AND SCHEMATICS

The wire color key (Table 11) and element strip diagrams (Figures 22-
25) are shown below. For schematics, please refer to the Built-in
Oven Service Guide (Wiring Diagram) which can be found on
QuickFinder or in the upper oven plenum, near the control module.
BK Black BN
GN Green OR
VT Violet WH
BN/WH Brown/White BU/WH
VT/WH Violet/White YE/BK
Table 11 Wire color key
Explanation
Will accept all modes except self-
clean. When oven set to self-clean,
display will be on constantly, doors
will not lock and self-clean will not
start. E206 will appear.
No fail code. Lower oven convection
motor will not work. Relay will snap
closed.
If latch position is not detected during
normal operation, E224/226 will be
displayed.
Control functions normal. When
sensor opens, E201 code will appear.
If sensor shorts, E204 will appear.
Cooling fan is on constantly.
Glass control panel is completely
dead. 3-position connector
(ground/voltage/data line) should
measure 9.6 VDC.
If no communication between
electronic modules, E005 will display.
Connector positions 1-2 should
measure ~5 VDC.
Brown BU Blue
Orange RD Red
White YE Yellow
Blue/White OR/BK Orange/Black
Yellow/Black
Page 19 of 21