Bosch HBL8752UCC User Manual

S
ERVICE
M
ANUAL
for
800 Series
Built-in Wall Ovens
HBL8442UC HBL8752UCC*
HBL8451UC HBL87M52UCC*
HBL8461UC HBL8742UCC*
HBL8642UC
HBL8651UC HBN8451UC
HBL8661UC HBN8651UC
This manual contains information that is necessary for
servicing the following Bosch electric built-in wall ovens:
HBL8442UC, HBL8451UC, HBL8461UC, HBL8642UC,
HBL8651UC, HBL8661UC, HBL8742UC
HBL8752UCC, HBL87M52UCC, HBL8742UCC
HBN8451UC, HBN8651UC
This manual is designed to be used by qualified service
personnel only. Due to the complexity and the risk of
high-voltage electrical shock, Bosch does not recommend
that customers service their own units.
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.
*HBL8752UCC is the traditional wall oven component of
the HBL8752UC combination oven (set), which also
includes the HMC80252UC Speed microwave oven.
**HBL87M52UCC is the traditional wall oven component
of the HBL87M52UC combination oven (set), which also
includes the HMB50152UC Solo microwave oven.
**HBL8742UCC is the traditional wall oven component of
the HBL8742UC combination oven (set), which also
includes the HMC80242UC Speed microwave oven.

Bosch HBL8752UCC Specifications

General

Brand	Bosch
Model	HBL8752UCC
Category	Oven
Language	English

Summary

Important Safety Information

Safety Before Servicing the Appliance

Essential safety steps and precautions before beginning any service work on the appliance.

Oven Operation Guide

Component Accessibility for Servicing

Service and Repair Procedures

Oven Doors

Details the serviceable parts and components of the oven door assembly.

Removing and Reinstalling the Oven Door

Step-by-step instructions for safely removing and reinstalling the oven door.

Replacing Oven Door Hinges

Procedure for replacing the oven door hinges, emphasizing pair replacement.

Door Latch and Motor Assembly

Information on the motorized door latch mechanism and its components.

Replacing the Latch/Motor Assembly

Steps for removing and installing the door latch and motor assembly.

Oven High Temperature Cutout (HTC)

Details the function and location of the high temperature cutout safety device.

Resetting and Replacing the HTC

Procedure for resetting or replacing the oven's high temperature cutout.

Control Panel Overview

Replacing the Front Panel Assembly

Convection Fan, Ring Element, and Motor

Information on the convection fan, ring element, and motor components.

Replacing the Convection Fan Blade

Replacing the Convection Ring Element

Replacing the Convection Fan Motor

Broil Element Details

Details the broil element, its function, and testing procedures.

Replacing the Broil Element

Bake Element Details

Information on the bake element, its location, and testing procedures.

Replacing the Bake Element

Temperature Sensor Information

Control Module and Daughter Board

Overview of the control module and daughter board, their functions, and accessibility.

Replacing Control Module or Daughter Board

Detailed instructions for replacing the control module or daughter board.

Cooling Fan Functionality and Service

Replacing the Cooling Fan

Hinge Receivers Replacement

Replacing the Hinge Receivers

Troubleshooting Oven Issues

Oven Error Codes Explained

Explains common error codes, their causes, and suggested repair actions.

Service Mode Access and Navigation

Instructions on how to enter and navigate the diagnostic service mode.

Setting Oven Option Codes

Displaying Error Memory

Performing Relay Tests

Front Panel Input Testing

Oven Fault Trees for Diagnosis

Diagnostic flowcharts to guide troubleshooting efforts for oven issues.

Wiring Diagrams and Schematics

Provides wire color keys and element strip diagrams for troubleshooting.

Wire Color Key Reference

Element Strip Diagram Reference