Bosch Bosch Series 4 fault codes
Built 2015 onwards
The old Exxcel range, WAN model prefix, GB suffix for the UK market. The volume seller in the range and the machine most of these codes are looked up against.
Codes on the Bosch Series 4 follow the same Bosch scheme as the rest of the range. Where a code behaves differently on this generation, the code page says so.
Fault codes
All Bosch codes that apply to this model.
- E18The machine could not pump out in the time allowed. Bosch point at the filter and the drain hose, and warn that the water you are about to release may be scalding.Get it checked
- E17Water supply time exceeded. Bosch name the AquaStop hose filter as a cause, which is a Bosch-specific part most owners do not know they have.Get it checked
- E23Water has been detected in the base of the machine and the AquaStop system has cut in. Bosch say to turn the tap off immediately and stop using it until it is repaired.Stop — call an engineer
- E32An unbalanced load. Bosch state explicitly that this is not a fault, and it is the code most often mistaken for a broken machine.Usually simple to fix
- E16The door is not locked properly. Bosch group this with E34, F16 and F34 as one fault, and washing caught in the seal is the usual reason.Get it checked
- E33Too much foam. Bosch tell you to reduce the detergent, and on a machine with i-DOS automatic dosing that advice needs adapting.Usually simple to fix