Bosch 800 Series Service Manual page 31

58300000194725 ARA EN B
Error
Description
Code
Continuous pushing of multiple
E032 keys
(E432 internal error reported as
E032.)
Touch control module (TCM)
E044
option code error
Rotary encoder switch short to
E050
Vcc
E101 Cavity 1 / Cavity 2 temperature
E201 sensor open
E104 Cavity 1 / Cavity 2 temperature
E204 sensor shorted
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MAY 2016
Cause/Notes
Two or more keys continuously pressed for 10
seconds or touch pad assembly has more than
one bad key. Key actions are suspended and
heating is paused. Error will clear and normal
operation will resume when no touch pads are
depressed.
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.
A short to Vcc is detected in an encoder switch
for more than 10 seconds.
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.
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.
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Service Manual for Bosch 800 Series Gas Slide-in Ranges
Suggested Action(s)
Confirm touch panel is clean and free of

moisture, oils or other contaminants.
Inspect user interface PCB.

Check door seal to verify vapor/moisture is

not causing key activation; replace seal if
necessary. Run Key Test in Service mode; if
it fails, replace front panel assembly.
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.
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.
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.
Page 31 of 36
800 944-2904