Bosch Washer E:10 Error Code
i-DOS dosing pump blocked. Here is what it means and how to clear it, easiest fix first.
On models with i-DOS automatic detergent dosing, this code means the dosing pump is blocked. You can switch automatic dosing off and add detergent by hand until it is sorted out.
Shown as E:10 with -00, -10 or -20. Only applies to models with i-DOS. Listed on Bosch's US support site; Bosch models sold in the UK and Europe may use a different code, so check your manual.
How to fix Bosch E:10
Clean the dosing unit
Turn the washer off and unplug it. Clean the i-DOS reservoirs and dosing unit following your owner's manual, put everything back, then plug the washer in and turn it on.
Dose by hand for now
If you need to wash before it is fixed, turn off automatic dosing in the settings and add detergent to the drawer yourself.
When to call a technician
If the code comes back after cleaning, call Bosch support or a technician to check the dosing pump.
Parts that commonly cause E:10
- i-DOS dosing pump
- Detergent reservoirs
Order parts by your exact model number so they fit.
Other Bosch washer codes
- E18 / F18Washer is not draining
- E17 / F17Water is not coming in fast enough
- E16 / F16Door is open or not locked
- E23 / F23Leak detected or AquaStop triggered
- E32 / F32Load is off-balance
- E33 / F33Too much suds
- E:30Water level problem (read the number after the code)
- E:36Drain pump blocked
- H9EHot water supply problem
- E19 / F19Water is taking too long to heat
- E20 / F20Unexpected heating
- E25 / F25Turbidity (water clarity) sensor fault
- E26 / F26 / F27Water level (pressure) sensor fault
- E28 / F28Flow sensor fault
- E56Internal communication error
- E80Motor drive circuit fault
- CLChild lock is on
Frequently asked questions
What does E:10 mean on a Bosch washer?
On models with i-DOS automatic detergent dosing, this code means the dosing pump is blocked. You can switch automatic dosing off and add detergent by hand until it is sorted out.
Can I fix Bosch E:10 myself?
Often. The first steps above are safe checks a homeowner can do. If they don't clear E:10, the cause is likely a worn part that needs replacing.
What if E:10 keeps coming back?
A code that returns after a reset and the checks above usually means a part is wearing out. Note when E:10 appears (which cycle, how often) and have your model number ready; it helps a technician bring the right part on the first visit.
Last reviewed 2026-10-19. Codes and steps can vary by model; check your owner's manual.