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)
(Only available for users logged in with a Google account)
| Code | Fault / Diagnostics | Appliances | Action |
|---|---|---|---|
| E:22 | Drain pump fault / Residual water in drain sump due to clogged filters / Program termination Info: Clogged filters. | Dishwasher | |
| E:23 | Erroneous drain pump resistance values / Program termination Info: Open circuit or short in drain pump wiring. | Dishwasher | |
| E23 | End of program Info: Drain pump fault; Incorrect drain pump resistance values | Dishwasher | |
| E:24 | Non-return valve leak / Drainage impossible / Drain pump cover missing or detached / Drain pump blockage / Program termination Info: Non-return valve leak; kinked, blocked hose, incorrect drain height, missing/detached pump cover; drain pump blockage. | Dishwasher | |
| E24 | Program aborted with error code E24 Info: Dirty or leaky non-return valve. | Dishwasher | |
| E:25 | Drain pump blockage / Drain pump cover missing or detached / Program termination Info: Foreign objects in the pump; pump cover missing or detached. | Dishwasher | |
| E25 | End of program Info: Drain pump blocked; Drain pump cover missing | Dishwasher | |
| E:26 | Il motore dei punti di erogazione dell'acqua è azionato, ma l'interruttore dei punti di erogazione dell'acqua non restituisce alcun impulso. Info: Il motore dei punti di erogazione dell'acqua è azionato, ma l'interruttore dei punti di erogazione dell'acqua non restituisce alcun impulso. | Dishwasher | |
| E26 | Error with the water switch (diverter valve). The wash cycle stops and dishes may not be clean. Info: The main control board is not receiving the correct feedback signal from the water switch, indicating it's not changing positions to direct water to the spray arms. This is likely due to faulty wiring, a defective switch motor, or a bad position sensor on the switch assembly. | Dishwasher | |
| E:27 | Pulses from water diverter missing despite control Info: Pulses from water diverter missing despite control | Dishwasher | |
| E:28 | AquaSensor error / Operation without AquaSensor / AquaSensor calibration unsuccessful Info: Appliance without AquaSensor (verify if it should be standard for this model); Lines issue; AquaSensor dirty. | Dishwasher | |
| E28 | Operation without aquasensor Info: Aquasensor fault; Appliance without aquasensor; Aquasensor calibration failure; Aquasensor dirty? | Dishwasher | |
| E:29 | Errore di sovra / sotto tensione; Apparecchio bloccato nella posizione attuale raggiunta, apparecchio senza funzioni, Cattivo risultato di lavaggio / risciacquo / asciugatura; La durata del ciclo aumenta Info: Sottotensione di rete (<170V / 190V); Nessun guasto sull'apparecchio! | Dishwasher | |
| E:30 | Appliance cannot be switched off / Appliance shuts down Info: Overvoltage (>290 V) / Not an appliance fault | Dishwasher | |
| E:31 | Pessimo risultato di lavaggio e asciugatura, poiché il lavaggio avviene a freddo, in combinazione con il codice errore E:31 relativo alle zeoliti con resistenza tubolare Info: L'acqua scorre attraverso la mascherina di scarico nel contenitore delle zeoliti | Dishwasher | |
| E:32 | Drain pump overvoltage detected Info: Internal to factory | Dishwasher | |
| E 101 | Cavo interrotto del sensore di temperatura del forno (PT 500) Info: 1. Cattiva connessione (contatto corroso/lasco). 2. Cavo interrotto. 3. Guasto PT500 (NTC). 4. Guasto nel modulo di controllo | Oven | |
| E101 | Wire break oven – temperature sensor (PT 500) Info: Bad plug connection (contact corroded / loose); Cable break; Error in PT500 (NTC); Error in the control module | Oven | |
| E 104 | Corto circuito del sensore di temperatura del forno (PT 500) Info: 1. Cattiva connessione (contatto corroso/lasco). 2. Cavo interrotto. 3. PT500 (NTC) é difettoso. 4. Guasto nel modulo di controllo | Oven | |
| E104 | Short circuit oven – temperature sensor (PT 500) Info: Bad plug connection (contact corroded / loose); Cable break; PT500 (NTC) is faulty; Error in the control module | Oven | |
| E 106 | La porta non é bloccata Info: 1. Gancio di bloccaggio bloccato. 2. Cattiva connessione (contatto corroso/lasco). 3. Avvolgimento del motore interrotto. 4. Errore nei collegamenti. 5. Micro interruttore in posizione errata. 6. Micro interruttore non funziona | Oven | |
| E106 | The door does not open because it is locked. The display shows "Oven not locked". Info: A door lock produced up to FD9103 had geometry that caused the hook to rub against the door insert, blocking movement. This prevented correct actuation of the microswitches, leading the electronics to detect an incorrect switching position. | Oven | |
| E 107 | Porte non déverrouillée Info: Crochet de verrouillage bloqué; Mauvaise connexion (contact rouillé / défait); Enroulement moteur coupé; Défaut de câblage; Défaut position micro-interrupteur; Micro-interrupteur ne commute pas; Relais K26 ne commute pas | Oven | |
| E107 | The door does not open because it is locked. The display shows "Oven not unlocked". Info: A door lock produced up to FD9103 had geometry that caused the hook to rub against the door insert, blocking movement. This prevented correct actuation of the microswitches, leading the electronics to detect an incorrect switching position. 4 Elite Techs Verified | Oven | |
| E 115 | Temperatur im nicht verriegeltem Backofen zu hoch Info: 1. Tür verriegelt nicht 2. Fehler im PT500 (NTC) 3. Fehler im Steuermodul | Oven | |
| E115 | Appliance main switch relay turns off and the appliance switches to a functionally safe state. Info: The calculated actual temperature (T/PT) exceeds 370 °C or 380 °C, activating safety software (PEC). | Oven | |
| E 136 | Température de l'inverter (IGBT) est très élevée Info: Surchauffe inverter (T thermistance > 75°C); Refroidissement insuffisant de l'appareil; Ventilateur de refroidissement ne fonctionne pas; Ventilateur magnétron ne fonctionne pas; Température ambiante > 30°C; Durée d'utilisation professionnelle; Défaut du module de contrôle | Oven | |
| E136 | Inverter (IGBT) temperature is very high Info: Inverter overheating (Thermistor T > 75°C); Insufficient appliance cooling; Cooling fan not running; Magnetron fan not running; Room temperature > 30°C; Professional – usage duration; Error in the control module | Oven | |
| E 137 | Température de l'inverter (IGBT) est trop élevée Info: Surchauffe inverter (T thermistance > 90°C); Refroidissement insuffisant de l'appareil; Ventilateur de refroidissement ne fonctionne pas; Ventilateur magnétron ne fonctionne pas; Température ambiante > 30°C; Défaut de l'inverter; Défaut du module de contrôle | Oven | |
| E137 | Inverter temperature (IGBT) is too high Info: Inverter overheating (thermistor T > 90 °C) / 1. Poor appliance cooling / 2. Tangential fan not working / 3. Magnetron fan not working / 4. Ambient temperature > 30 °C / 5. Inverter fault / 6. Control board fault | Oven |