Bosch HBL87M52UCC - E005, E305, E009, E309, E010, E310, E011, E312, E314, E414, E032 Error Codes

58300000202443_ARA_EN_C JANUARY 2018 Service Manual for Bosch 800 Series Built-in Wall Ovens
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Error Code
Description
Cause/Notes
Suggested Action(s)
E005
E305
Communication error
E005: Loss of communication between user
interface and control module.
E305: Loss of communication between TCM
and control module or TCM and user interface.

Check for damaged (cut or pinched) wires
or loose connectors.
 Confirm that voltage is getting to the
correct pins on the board.
E009
E309
ROM-check error in user interface
ROM-check performed at reset fails. All
heating elements disabled. Error will be
cancelled at start-up if next ROM-check
succeeds.
 E009: Replace user interface
 E309: Replace control module
E010
E310
Data memory error in user
interface
Cyclic check of memory content or a write to
memory failed. All heating elements will be
disabled. Error will be cancelled at start-up.
 E010: Replace user interface
 E310: Replace control module
E011
Continuous pushing of a single key
(E411 internal error reported as
E011)
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.

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.
E312
Defective control module
temperature sensor
All oven operations suspended until control
reset
Replace control module
E314
E414
Cancel / Off key error
Oven operation will be stopped. Error
cancelled only by a system reset.

Check touch pad assembly.

Inspect user interface PCB.
E032
Continuous pushing of multiple
keys
(E432 internal error reported as
E032.)
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.

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.