Bosch E26 fault codewhat it means and how to fix it
A problem with the pressure sensor of the water system. The machine cannot tell how much water is in the drum, so it stops.
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Get a qualified appliance engineer to look at your Bosch E26
We do not pass enquiries to a repair firm, so there is no form here. When you book a qualified appliance engineer, tell them the make, the model and the exact code or message on the display, and ask whether they carry parts for this make — that is what turns one visit into a repair rather than a quote.
What E26 means
E26 is a problem with the pressure sensor of the water system, and BSH give it no owner remedy at all. Understanding what the part does explains why the machine stops rather than carrying on. A washing machine has no float and no dipstick. It works out the water level by measuring air pressure in a small chamber connected to the bottom of the tub by a thin hose: as water rises, the trapped air is compressed, and the sensor converts that pressure into a level.
Every decision about water depends on it. When to stop filling, whether the drum has emptied, whether it is safe to spin, whether to release the door. A machine that cannot read the level has no safe option but to stop, because the same sensor is what prevents it overfilling.
There are two failures behind this code and only one is the sensor. The chamber and its hose can silt up with detergent sludge or trap water, and a hose that is blocked, split or has worked off its spigot gives a reading that is steady and wrong rather than absent. BSH do not distinguish those in what they publish, and an engineer who replaces the sensor without checking the chamber and the hose has not finished the job. That is a fair thing to say when you book it.
What causes it
| Cause | What is actually happening | How likely |
|---|---|---|
| Pressure sensor failed | What the code names. The sensor sits high in the cabinet and reads the air column from the tub, and it either reads or it does not. | Common |
| Pressure hose blocked, split or off | The thin tube between the tub chamber and the sensor. A cheap fix that presents identically to a failed sensor. | Common |
| Pressure chamber silted with detergent | Sludge in the chamber at the tub damps the pressure change. Common on machines run mostly on cool short cycles. | Occasional |
Can you fix it yourself?
Stop — this needs an engineer
What it costs to fix
Typical repair cost
£90–£200
A pressure sensor is a modest part, so most of a £90 to £200 bill is the visit. A blocked hose or chamber cleared on the same visit costs the call-out and no part at all.
Typical UK prices including parts and labour, updated September 2026. Your quote may differ.
Own this appliance and had this code? . Nothing is published until a person has read it.
Related Bosch fault codes
- E18Get it checkedThe 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.Related: same brand
- E17Get it checkedProblems with the water connection: tap, kinked hose, blocked inlet filter or low pressure. Bosch’s AquaStop hose has a filter at the tap end most owners do not know about.Related: same brand
- E23Stop — call an engineerWater 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.Related: same brand
- E32Usually simple to fixAn unbalanced load, and Bosch headline it as the machine flashing "end" at the end of the programme. They state outright that this is not a fault.Related: same brand
- E06Get it checkedThe pump is blocked by something that got into it, or the outlet hose was kinked when the machine was last moved. Both are owner jobs.Related: same brand
- E16Get it checkedThe door is not locked properly. Bosch’s US index groups this with E34, F16 and F34 as one fault, and washing caught in the seal is the usual reason.Related: same brand
Own a Bosch washing machine? Save it and its codes come first next time.
Related guides
Common questions about Bosch E26
Why does the machine refuse to run at all?
Because the level sensor is also the overfill protection. Without it the machine cannot tell a full drum from an empty one, and continuing would mean either filling until water reached the door or spinning with water still in the tub. Stopping is the safe failure, and it is the same logic behind the door staying locked.
Is there anything I can check first?
Not from outside, and BSH publish nothing for this code. What is worth doing is telling the engineer when you book that you would like the pressure chamber and its hose checked before the sensor is replaced, because two of the three likely causes are not the sensor and one of them costs almost nothing.
How does this differ from the flow sensor code?
They measure different things. The pressure sensor reads how much water is in the tub. The flow sensor, which BSH publish separately, measures water passing into the machine. A level fault stops the machine deciding anything about the drum; a flow fault is about the fill.
Could a blocked filter cause this?
Not the inlet filter, no. The one blockage that produces this code is in the pressure system itself — the chamber at the bottom of the tub and the thin hose running up from it. That is a different part of the machine from anything to do with filling or draining, and it is why this is not a drainage code.
Technical review
Not reviewed by an engineer
No engineer has read this page. Severity follows what the manufacturer publishes, and we would rather tell you that than let a byline imply a sign-off.
Sources and how we verified this
We establish the facts from the sources below and then write the explanation ourselves. We do not copy manufacturer wording and we do not host their manuals.
- Manufacturer support portal
This page has not been reviewed by an engineer, and we would rather tell you that than imply otherwise. The severity rating follows what the manufacturer publishes: where they say isolate the appliance and call someone, so do we.