Bosch Benchmark HBLP451LUC Service-Handbuch - Seite 35
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7 TROUBLESHOOTING
The information in this section will be helpful when troubleshooting, diagnosing, and resolving faults and other issues affecting the normal operation
of the oven.
7.1
Error Codes
A Service Guide/Wire Diagram that includes error code information is available in
QuickFinder and is also packed with every oven. Find it on the underside of the upper
plenum access panel as shown in Figure 52.
Additional error code information and suggested repair actions can be found in the
following table. Note that error codes which begin with E1 apply specifically to the
single/upper oven cavity, and those which begin with E2 apply specifically to the lower
oven cavity of double ovens.
Error Code
Description
Wrong module code
E000
(E100/E400 internal errors
reported as E000)
E302
Control module too hot
E005
Communication error
E305
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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.
APRIL 2014
Cause/Notes
Control module and user interface are
mismatched. No operation is possible.
Temperature sensor on the control module
detects temperature higher than limit value.
Control turns off heating elements and fan
defaults to high speed. When cavity
temperature lowers to 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.)
E005: Loss of communication between user
interface and control module.
E305: Loss of communication between TCM
and control module or TCM and user interface.
1901 Main St ▪ Suite 600 ▪ Irvine, CA 92614
Service Manual for Bosch 800 Series Built-in Wall Ovens
Figure 52 Location of Service Guide on the control module access panel
Suggested Action(s)
Enter correct option code in Service mode.
If cooling fan is not operating...
Check connections to the fan and the control module
(see Small Load Schematic).
If cooling fan is operating...
Check element operation
Check for air obstruction or damaged upper/lower
ventilation trims
Check for stuck relays.
Check for damaged (cut or pinched) wires or loose
connectors.
Confirm that voltage is getting to the correct pins on
the board.
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