What E:10 Means
E:10 belongs to the zeolite drying system: the control has tested the heater inside the zeolite container and not got the resistance it expects. Bosch notes plainly in this row that the zeolite heater is built into the container and cannot be replaced on its own in the field, so the documented repair is either the harness feeding it or the container as a complete assembly.
Common Causes of E:10
- Heater inside the zeolite container has gone open circuit
- Harness to the zeolite container loose or damaged
- Drying fan blocked, leaving the container running hot
🔧 One Safe Check You Can Try
Nothing on this circuit is a home check. What is useful is to note whether drying has been getting gradually worse over weeks or stopped all at once, since that helps separate a failing heater from a harness that has come adrift.
⚠ Why You Shouldn't Go Further Than That
- Bosch states in this row that the heater is inside the container and is not a field-replaceable item, so dismantling in the hope of reaching it is wasted effort.
- The resistance check that decides between harness and container has to be made against Bosch's published figure for your model.
- The zeolite assembly sits alongside the tub and is reached only by pulling the machine out of its housing.
- A container ordered on a guess is an expensive part to be left holding if the harness was the real fault.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.