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
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| Code | Fault / Diagnostics | Appliances | Action |
|---|---|---|---|
| E 138 | Erreur de connecteur de l'inverter H 95 Info: Sécurité déclenchée / mauvais contact; Mauvaise connexion (contact rouillé / défait); Interrupteur de porte ne commute pas; Défaut de l'inverter; Défaut du magnétron; Défaut du module de contrôle | Oven | |
| E138 | Inverter “Connector Error” H 95 Info: Fuse triggered / bad contact; Bad plug connection (contact corroded / loose); Door switch does not switch; Error in the inverter; Error in the magnetron; Error in the control module | Oven | |
| E 139 | Inverter “Guasto nel Controllo IC” H 96-1 Info: 1. Raffreddamento dell’apparecchio insufficiente. 2. Ventilatore di raffreddamento non funziona. 3. Ventilatore del magnetron non funziona. 4. Guasto nell’inverter. 5. Guasto nel modulo di controllo | Oven | |
| E139 | Inverter “IC control fault” H 96-1 Info: 1. Poor appliance cooling / 2. Tangential fan not working / 3. Magnetron fan not working / 4. Inverter fault / 5. Control board fault | Oven | |
| E 140 | Inverter “Guasto nel Controllo IC” H 96-2 Info: 1. Raffreddamento dell’apparecchio insufficiente. 2. Ventilatore di raffreddamento non funziona. 3. Ventilatore del magnetron non funziona. 4. Guasto nell’inverter. 5. Guasto nel magnetron. 6. Guasto nel modulo di controllo | Oven | |
| E140 | Inverter “IC control fault” H 96-2 Info: 1. Poor appliance cooling / 2. Tangential fan not working / 3. Magnetron fan not working / 4. Inverter fault / 5. Magnetron fault / 6. Control board fault | Oven | |
| E 141 | Inverter “Guasto nel Controllo” H 97 Info: 1. Raffreddamento dell’apparecchio insufficiente. 2. Ventilatore di raffreddamento non funziona. 3. Ventilatore del magnetron non funziona. 4. Guasto nell’inverter. 5. Guasto nel magnetron. 6. Guasto nel modulo di controllo | Oven | |
| E141 | Inverter “Control Error” H 97 Info: Insufficient appliance cooling; Cooling fan not running; Magnetron fan not running; Error in the inverter; Error in the magnetron; Error in the control module | Oven | |
| E 142 | Défaut de l'inverter H 98 Info: Refroidissement insuffisant de l'appareil; Ventilateur de refroidissement ne fonctionne pas; Ventilateur magnétron ne fonctionne pas; Magnétron mal raccordé; Défaut du magnétron; Défaut de l'inverter; Défaut du module de contrôle | Oven | |
| E142 | Inverter “Error” H 98 Info: Insufficient appliance cooling; Cooling fan not running; Magnetron fan not running; Magnetron incorrectly connected; Error in the magnetron; Error in the inverter; Error in the control module | Oven | |
| E 143 | Impulsions de l'inverter H 99 Info: Défaut de l'inverter; Défaut du module de contrôle | Oven | |
| E143 | Inverter “Pulses” H 99 Info: 1. Inverter fault / 2. Control board fault 4 Elite Techs Verified | Oven | |
| E 144 | Plausibilitätskontrolle (Doppelbacköfen --> Backrohr 1) Info: Parameterfehler im Steuermodul | Oven | |
| E144 | Plausibility check (Double ovens --> Oven cavity 1) Info: Parameter error in the control module | Oven | |
| E 244 | Plausibilitätskontrolle (Doppelbacköfen --> Backrohr 2) Info: Parameterfehler im Steuermodul | Oven | |
| E244 | Plausibility check (Double ovens --> Oven cavity 2) Info: Parameter error in the control module | Oven | |
| E 300 | Falsche Modulkombination (Anzeige- <--> Steuermodul) Info: 1. falsche Modulkombination; 2. falscher Varianten-Code (VC) | Oven | |
| E300 | 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. Info: 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. | Oven | |
| E 303 | Temperatura del modulo di controllo troppo alta Info: 1. Raffreddamento dell’apparecchio insufficiente. 2. Ventilatore di raffreddamento non funziona. 3. Ventilatore del magnetron non funziona | Oven | |
| E303 | The control board temperature is too high Info: 1. Poor appliance cooling / 2. Tangential fan not working / 3. Magnetron fan not working | Oven | |
| E 305 | Erreur de communication (peut être affiché comme clignotement de la lampe du four (1sec M / 1 sec A) ou signal sonore long) Info: Mauvaise connexion (contact rouillé / défait); Coupure de câble; Chariot / porte ne ferme pas complètement; Défaut du module d'affichage; Défaut du module de régulation | Oven | |
| E305 | Oven light flashes or the operating module is without function. The display flickers, and displays disappear and re-appear during operation. Info: Humidity between the fascia and control electronics, which escapes via a leaking oven carriage door and is conveyed into the fascia, on the control electronics, by ventilation. 4 Elite Techs Verified | Oven | |
| E 309 | Erreur de vérification ROM Info: Défaut interne du module de contrôle | Oven | |
| E309 | ROM verification fault Info: Internal fault of the control board | Oven | |
| E 310 | Guasto nei dati in memoria Info: Guasto interno nel modulo di controllo | Oven | |
| E310 | Error in data memory Info: Internal error in the control module | Oven | |
| E 312 | Sensore della temperatura guasto Info: NTC guasto sul modulo di controllo | Oven | |
| E312 | Temperature sensor error Info: NTC error on control module | Oven | |
| E 344 | Controllo di plausibilità Info: Errore nei parametri nel modulo di controllo | Oven | |
| E344 | Possible verification Info: Control board parameter fault | Oven |