Thermador ME302J Series User Manual

SERVICE MANUAL
for
Thermador Masterpiece
J-Series
Built-in Wall Ovens
Models:
ME301Jx, MED271JS, MED301Jx, ME302Jx,
MED272JS, MED302Jx, MEDMC301Jx,
MEDMCW71JS, MEDMCW31Jx
This manual contains information that is necessary for
servicing the following Thermador electric built-in wall
ovens:
ME301Jx, MED271JS, MED301Jx, ME302Jx,
MED272JS, MED302Jx, MEDMC301Jx,
MEDMCW71JS, MEDMCW31Jx
This manual is designed to be used by qualified
service personnel only. Due to the complexity and the
risk of high-voltage electrical shock, Thermador 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.

Thermador ME302J Series Specifications

General

Brand	Thermador
Model	ME302J Series
Category	Oven
Language	English

Summary

Important Safety Information

Safety Before Servicing the Appliance

Safety precautions before disassembling, removing, or installing components.

Electrical Hazards

Warnings and precautions related to electrical hazards during service.

Use of Replacement Parts

Importance of using authorized replacement parts for safety and warranty.

Sharp Components

Warning about sharp edges on sheet metal parts and protective measures.

Prior to Returning Appliance to Service

Checklist for confirming secure connections and reassembly before service return.

Operation

Component Accessibility

Service and Repair

Removing and Replacing the Door(s)

Step-by-step guide for removing and replacing oven doors.

Hinges

Explains SoftClose hinges, oil dampening, and recovery time.

Door Latch/Motor Assembly

Stuck Latch

Replacing Bulbs

Temperature Sensor

Setting Temperature Offsets

How to adjust oven temperature offsets via User Settings menu.

Broil Element

PC Control Module (Relay Board)

How to access and service the PC control module.

Convection Fan Motor

Bake Element (Upper Oven)

Removing the Bake Element

Cooling Fan Motor (Upper Oven)

Error Codes

Error Code Table

Table listing error codes and their causes/actions.

Service Mode / Setting Option Code

Entering Service Mode

Setting Option Code

Steps to set the option code via Service Mode.

Exiting Service Mode

Resetting the Oven

Troubleshooting

Fault Tree Diagram and Definitions

Visual guide for troubleshooting and definitions of unit behaviors/status.

Oven Display Dead

Failure at Unit Power Up

No display lighting or characters, buttons/knobs offer proper response.

Oven Keys Not Functional

Failure at Unit Power-Up

No keys function, or only some keys function.

Failure During Operation

Keys do not respond to touch during operation.

Oven Does Not Heat

Failure at Unit Power-Up

No element will operate or only some elements operate.

Failure During Operation

One or more heating elements do not operate during use.

E005: Loss of Functional Communication

Loss of communication between components, displays E005 error.

Failure During Operation (E005)

Assumes oven operating but communication lost.

Oven Does Not Retain Heat

Oven Pre-heats But Does Not Maintain Appropriate Temperature

Oven pre-heats but does not maintain appropriate temperature.

Testing

Troubleshooting Table