Bosch 800 Series Service Manual page 30

58300000194725 ARA EN B
Error
Description
Code
E005
Communication error
E305
E009
ROM-check error in user interface
E309
E010 Data memory error in user
E310 interface
Continuous pushing of a single key
E011
(E411 internal error reported as
E011)
Electronics Delta temperature too
E303
high
Defective control module
E312
temperature sensor
E314
Cancel / Off key error
E414
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MAY 2016
Cause/Notes
E005: Loss of communication between user
interface and control module.
E305: Loss of communication between TCM
and control module or TCM and user interface.
ROM-check performed at reset fails. All
heating elements disabled. Error will be
cancelled at start-up if next ROM-check
succeeds.
Cyclic check of memory content or a write to
memory failed. All heating elements will be
disabled. Error will be cancelled at start-up.
Key pressed continually for 10 seconds, or
touchpad assembly has a bad key. Heating will
be stopped and will resume when key is no
longer pressed.
Temperature sensor on the control module
detects temperature changes that, over time,
are higher than limit value. Control turns off
heating elements and fan defaults to high
speed. When cavity temperature reaches
212°F/100°C, heating will resume and error
will be cleared. (If self-clean was running, it will
be disabled until a control reset is performed.)
All oven operations suspended until control
reset.
Oven operation will be stopped. Error
cancelled only by a system reset.
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Service Manual for Bosch 800 Series Gas Slide-in Ranges
Suggested Action(s)
Check for damaged (cut or pinched) wires

or loose connectors.
Confirm that voltage is getting to the

correct pins on the board.
E009: Replace user interface

E309: Replace control module

E010: Replace user interface

E310: Replace control module

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.
Check connections to cooling fan and to

control module (see Small Load Schematic).
Check element operation.

Check for air obstruction or damaged

upper/lower ventilation trims.
Check for stuck relays.

Replace control module
Check touch pad assembly.

Inspect user interface PCB.

Page 30 of 36
800 944-2904