Neff E845 fault codewhat it means and how to fix it
The pump has drawn air repeatedly, which on a steam oven means the water tank. Four codes share this one answer, and none of them applies to a conventional oven.
Take care
What E845 means
Neff publish E845, E870, E871 and E872 as one entry with one cause and one remedy between them: the pump has pumped air several times in succession, and the answer is to press the clock function button, fill the water tank and push it in all the way. As with the other steam codes filed under Ovens, this cannot occur on a conventional built-in oven, which has no tank and no pump.
What the code is really reporting is that the pump is finding air where it expects water, which happens when the tank is empty, when it has not been pushed fully home so the pump cannot draw from it, or when the water level has dropped below the pickup during a long cycle. The detail worth acting on is the last part of their instruction. Pushing the tank in all the way is called out specifically, which suggests a partially inserted tank is a common enough cause to be worth naming — and it is easy to produce, because a tank that is nearly home feels seated and looks right from the front.
What causes it
| Cause | What is actually happening | How likely |
|---|---|---|
| The water tank is empty | The obvious one and the first thing Neff’s remedy addresses. A steam cycle uses more water than most owners expect on a long programme. | Common |
| The tank is not pushed fully into place | Neff call this out specifically. A tank that stops just short of home looks correctly fitted but leaves the pump unable to draw from it. | Common |
| The tank ran dry part way through a long programme | The pump meeting air mid-cycle produces the same report as starting with an empty tank, and a long steam cook is where it usually happens. | Occasional |
What to try yourself
Press the clock function button, which is how Neff have you acknowledge the message.
Take the water tank out and fill it.
Push it back in all the way. Neff single this out in their instruction, and a tank sitting a few millimetres short is the failure they are guarding against.
Start the programme again. If the same code returns with a full and properly seated tank, that is beyond the published owner remedy and worth a call.
Get a qualified appliance engineer to look at your Neff E845
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 it costs to fix
Typical repair cost
Depends on the cause
Time on site
5 minutes
Nothing in the ordinary case. Refilling and reseating the tank is the whole of the published remedy.
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 Neff fault codes
- E5116Get it checkedA steam oven code, not a conventional oven one. Neff say it can occur on first use because there is still air in the system, and publish a full owner procedure.Related: heating and elements
- E8Get it checkedThe steam-supporting function has failed. Neff tell you to press the clock button and carry on, because everything that does not need steam still works.Related: heating and elements
- Door lockedGet it checkedThree reasons a Neff oven door will not open, and for the worst of them the published fix is the opposite of what everybody tells you. Do not cut the power.Related: same brand
- E05-32Get it checkedA button is stuck or has been held down too long. This is the only current oven code BSH explain on their website and also print in their manuals, and the fix is free.Related: same brand
- E0111Get it checkedThe honest catch-all. BSH confirm their ovens display codes, give the format and tell you to quote it to the engineer, then decline to publish what any of them mean.Related: same brand
- Er3Usually simple to fixNot a fault, and Neff say so outright. The electronics have got warm, the cooling fan is dealing with it, and the oven resumes heating on its own.Related: same brand
Own a Neff oven? Save it and its codes come first next time.
Related guides
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.