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Bosch
Oven
Data independently verified by Elite B2B Technicians
Diagnostic Complet

Error Code E300 Bosch

Symptom / Description

Unsatisfactory baking result or functions of the buttons do not correspond, appliance is in "Safety mode", buttons are not functioning, or the heating curve is no longer optimum. Also linked to steam/water/fumes entering electronics.

Root Cause

Incorrect version coding of the operating module software, which defines button functions and software version. Also, humidity between the fascia and control electronics, escaping via a leaking oven carriage door and conveyed by ventilation.

Repair Instructions

UNLOCKED

Set the correct version code using the customer service test programme (Test 5). Switch the use of catalysis plates or pull-out drawers on or off in the basic settings of the appliance. Additionally, check that the door seal is positioned 100% on the oven carriage and that the oven carriage functions 100% (without noises, scraping, or resistance).

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