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Bosch Error Codes & Diagnostics

Complete B2B dictionary of fault codes, troubleshooting steps, and repair manuals for Bosch home appliances, including Washing Machines, Dishwashers, Ovens, Dryers, and Refrigerators.

181 Verified Codes in Database
Are you a Certified Technician?Stamp unverified codes below to earn +10 Reputation Points.
(Only available for users logged in with a Google account)
CodeFault / DiagnosticsAppliancesAction
E 395
EEPROM errore di scrittura
Info: Guasto interno nel modulo di controllo
Oven
E 395 Full Steps Diagnose
E395
EEPROM write fault
Info: Internal fault of the control board
Oven
E395 Full Steps Diagnose
E 396
EEPROM errore di lettura
Info: Guasto interno nel modulo di controllo
Oven
E 396 Full Steps Diagnose
E396
Error code E396 is displayed on the appliance.
Info: Internal EEPROM read error on the main control module.
Oven
E396 Full Steps Diagnose
E 397
DBUS2
Info: 1. Kurzzeitige Störung der DBus2 Kommunikation wegen einer EMV-Störung 2. schlechte Steckverbindung (Kontakt korrodiert / lose) 3. Fehler im Anzeigemodul
Oven
E 397 Full Steps Diagnose
E397
DBUS2
Info: 1. Instantaneous DBus2 communication error due to an EMC error / 2. Bad mains connection (rusted/loose contact) / 3. Display board fault
Oven
E397 Full Steps Diagnose
E 398
DBUS2
Info: 1. Kurzzeitige Störung der DBus2 Kommunikation wegen einer EMV-Störung 2. schlechte Steckverbindung (Kontakt korrodiert / lose) 3. Fehler im Anzeigemodul
Oven
E 398 Full Steps Diagnose
E398
DBUS2
Info: 1. Instantaneous DBus2 communication error due to an EMC error / 2. Bad mains connection (rusted/loose contact) / 3. Display board fault
Oven
E398 Full Steps Diagnose
E 399
DBUS2
Info: 1. Kurzzeitige Störung der DBus2 Kommunikation wegen einer EMV-Störung 2. schlechte Steckverbindung (Kontakt korrodiert / lose) 3. Fehler im Anzeigemodul
Oven
E 399 Full Steps Diagnose
E399
DBUS2
Info: 1. Instantaneous DBus2 communication error due to an EMC error / 2. Bad mains connection (rusted/loose contact) / 3. Display board fault
Oven
E399 Full Steps Diagnose
E 516
Sensore della Cottura con Sonda (sensore della temperatura per alimenti)
Info: 1. Cattiva connessione (contatto corroso/lasco). 2. Cavo interrotto. 3. Guasto nel Sensore della Cottura con Sonda. 4. Guasto nel PCB Sensore della Cottura
Oven
E 516 Full Steps Diagnose
E516
Core temperature sensor
Info: Bad plug connection (contact corroded / loose); Cable break; Error in the temperature sensor; Error in the Meat Probe Module
Oven
E516 Full Steps Diagnose
F
Error display F in the display of a cooktop
Cooktop
F Full Steps Diagnose
F 0
Problem with hob control
Info: Low-voltage supply 17 V AC (transformer) issue
Cooktop
F 0 Full Steps Diagnose
F(FFF)
Kommunikationsfehler
Info: Serielle Kommunikation zwischen Kochfeldsteuerung und Anzeigemodul gestört (Versorgungsspannung des Busses vorhanden, Datentelegramme jedoch unvollständig oder fehlen ganz)
Cooktop
F(FFF) Full Steps Diagnose
F0
Kommunikationsfehler bei Kochsensorik / Kommunikationsfehler zwischen Polybox und Anzeigeplatinen
Info: Leitung zwischen Regelmodul und Kochsensor fehlerhaft; Regelmodul defekt; Kochsensor defekt; Leitung zwischen Polybox und Anzeigeplatine fehlerhaft; Anzeigeplatine defekt; Polybox defekt
Cooktop
F0 Full Steps Diagnose
FFFF
FFFF displayed
Info: Error in serial communication between the display board and the hob control.
Cooktop
FFFF Full Steps Diagnose
F1
F and 1 blink alternately in the heating zone display
Info: Switching between Manual and Automatic cooking sensor mode during operation (extending/retracting cooking sensor).
Cooktop
F1 Full Steps Diagnose
F2
The heating zone that caused the overtemperature is completely switched off, and the error message 'F' and '2' (alternately flashing) is displayed.
Info: The temperature at the monitoring sensor of the electronics reached 100 °C (overtemperature).
Cooktop
F2 Full Steps Diagnose
F3
Überhitzung Regelmodul (T>100°C) / Überhitzung Kochsensor (T>100°C)
Info: Topf oder Pfanne zu groß; Topf oder Pfanne fehlerhaft (Boden gewölbt); Topf oder Pfanne nicht zentriert aufgesetzt; Wärmeisolierung der Heizzone fehlerhaft; Heizzone wird nicht richtig von unten an die Glaskeramik angedrückt; Topf zu groß; Topf fehlerhaft (Boden gewölbt); Topf nicht zentriert aufgesetzt; zu wenig Flüssigkeit im Topf
Cooktop
F3 Full Steps Diagnose
F4
F and 4 blink alternately in the display (or general error message in cooking sensor operation)
Info: General error in cooking sensor operation. For YL161 models: overheating of YL161 (T > 120°C).
5 Elite Techs Verified
Cooktop
F4 Full Steps Diagnose
F5
Error message displayed in cooking sensor operation (1 sec on / 1 sec off)
Info: General error in cooking sensor operation.
Cooktop
F5 Full Steps Diagnose
F6
F and 6 blink alternately in the heating zone display
Info: A change initialization was required by the control board after the first application of mains voltage to set the functional scope (BS and/or KS).
Cooktop
F6 Full Steps Diagnose
F7
F and 7 blink alternately in the heating zone display
Info: Frying sensor (PT500) values are outside the allowed range (e.g., due to short circuit or interruption).
Cooktop
F7 Full Steps Diagnose
F8
The heating zone switches off automatically after a certain operating time, and the error message 'F' and '8' (alternately flashing) appears.
Info: The maximum operating duration of the heating zone has been exceeded because no change to the cooking level settings occurred within this time (operating duration limitation/holiday circuit).
Cooktop
F8 Full Steps Diagnose
H
Dopo l'esecuzione del flash, viene visualizzato "H" sul display
Info: L'alimentazione di rete non è stata resettata dopo l'esecuzione del flash. Il dispositivo si trova nel programma di test di fabbrica.
Dishwasher
H Full Steps Diagnose
h:00 – h:24
Gerät startet nicht
Info: Zeitvorwahl ist aktiviert!
Dishwasher
h:00 – h:24 Full Steps Diagnose
P0 Switchmirror 1
Messaggio di errore „P0 Switchmirror 1“ o barre colorate sul display con pannello comandi capacitivo “CapaTouch“
Info: Sono stati premuti i tasti sbagliati per l'accesso al programma di test. / Lamiera antivapore montata. Il modulo di comando è troppo vicino alla lamiera antivapore. CapaTouch reagisce.
Dishwasher
P0 Switchmirror 1 Full Steps Diagnose
rrr
kein Fehler
Info: während einer Stromunterbrechung war eine Betriebsart aktiv
Oven
rrr Full Steps Diagnose
S
Safety shutdown / Operating time limitation
Info: Operating time limit reached for cooktops and oven
Oven / Cooktop
S Full Steps Diagnose
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