Bosch dishwasher error code E12

Build-up of limescale in heating system - To avoid damage to the heating system, we urgently recommend descaling the appliance. We recommend using our quick descaler (00311506), our dishwasher care (00311565) or other standard descaling products for dishwashers. Make sure you use these products according to the instructions on the packaging.

Cleaning & Care products

Get in touch

Customer Service Centre
D-G-50, Block Dahlia, 10 Boulevard,
Sprint Highway, PJU6A, 47400
Petaling Jaya, Selangor

Walk-in from Monday to Friday: 9am to 6pm (closed on Public Holidays)
To locate us:
For Waze, please search: Bosch Customer Service Centre
For Google map, please search: Bosch Service – Home Appliances

Customer Service Consultant
Phone: +603 7950 9338
Monday to Friday: 9am to 6pm
Saturday: 9am to 1pm
(closed on Public Holidays)

Help is on the way: arrange a Bosch technician visit.

If you experience any problems with your home appliance, you can arrange a visit from a Bosch service technician.

Instruction Manuals

Download our manuals to help you get a quick start to operate your appliance.

Locate the rating plate

Identify your appliance to find your E-Nr (model) and FD (producion) number. You need these for product registration and booking your repair service.