58300000202443_ARA_EN_C
JANUARY 2018
Service Manual for Bosch 800 Series Built-in Wall Ovens
Page 34 of 43
Copyright by BSH Home Appliances Corporation
1901 Main St
▪
Suite 600
▪
Irvine, CA 92614
800 944-2904
This material is intended for the sole use of BSH authorized persons and may contain confidential and proprietary information. Any unauthorized review, use, copying, disclosure, or distribution in any format is prohibited.
Error Code Description
Cause/Notes
Suggested Action(s)
E044
Touch control module (TCM)
option code error
TCM board or connections to TCM are bad.
During start-up, the control module is unable
to set TCM option code. Reset is required to
clear error.
Enter Service mode to set correct option
code.
Check connection to control module.
Check connection to TCM.
If unable to set option code and
connections are good, replace front panel
assembly.
E050
Rotary encoder switch short to
Vcc (500 series only)
A short to Vcc is detected in an encoder switch
for more than 10 seconds.
Replace rotary encoder switch
E101
E201
Cavity 1 / Cavity 2 temperature
sensor open
Temperature sensor disconnected or has a
faulty connection. Cooling fan will operate at
high speed and heating will stop. After two
consecutive temperature readings are made
successfully, heating will resume and error will
be cleared. See Communication Schematic.
Check all connections and wires to
temperature sensor.
Check resistance of temperature sensor: if
sensor tests OK, could be control module
problem; if sensor fails, replace sensor.
E104
E204
Cavity 1 / Cavity 2 temperature
sensor shorted
Temperature sensor shorted to ground.
Cooling fan will operate at high speed and
heating will stop. After two consecutive
temperature readings are made successfully,
heating will resume and error will be cleared.
See Communication Schematic
Check wires and connections for pinch or
short circuit to ground.
Check resistance of temperature sensor: if
sensor tests OK, could be control module
problem; if sensor fails, replace sensor.
E106
E206
Cavity 1 / Cavity 2 door latch does
not lock
Latch operation not determined by control
module. Door latch does not lock after 1
minute and further attempts will stop. Error
will be cancelled and normal operation
resumed if a locked door is no longer required.
See Cavity 1 (upper) Small Load Schematic
Check latch motor and switch
connections/wires.
Check connections to control board.
Check wires between control board and
latch. Check operation of door switch.
Check latch for binding/mechanical latch
failure.
