Learn how to be your own tech line…

Click here to check out our structured, online appliance repair training courses for rookies and experienced techs.

FAQs | Repair Videos | Academy | Newsletter | Podcast | Contact

Stay connected with us...

Samurai on Facebook - become a fan today! Sign up for our free newsletter and keep up with all things Appliantology. Subscribe to our YouTube channel for lots of appliance repair tips and help! Follow the Samurai on Twitter and get timely morsels of Appliantological Wisdom! Subscribe to our MST Radio podcast to learn secrets of the trade.

Samurai Appliance Repair Man's Blog

  • entries
  • comments
  • views

Decoding Bosch Dishwasher Error Codes

Samurai Appliance Repair Man


from the Bosch Service Manual:

DISHWASHER TEST PROGRAM ERROR CODES (on 2-digit digital displays):

0 – No faults

1 – Aqua Sensor (Sensotronic) fault

2 – Heating system fault (heater, Hi-Limit, flow switch, NTC, control module heater relay)

4 – Water filling fault

8 – NTC (temperature sensor) fault

16 – Water switch fault

Fault codes add up for multiple faults

(e.g. heating + water filling fault = 2 + 4 = 6)

I'm not a Bosch master, but it looks like 21 would be 16+4+1

Is there enough water in the Dishwasher ?

Source: Bosch SHX56B02UC Dishwasher