Bosch F16 washing machine: what it means & what to check

What F16 actually means

The machine doesn't believe the door is properly shut and locked, so it won't start filling.

Before any Bosch washer takes water it has to confirm the door interlock has latched. F16 appears when that confirmation never arrives — either the door genuinely isn't caught, or the interlock itself has failed to report closed. The cycle stops at the very beginning, usually with no water having gone in.

What F16 looks like on a Bosch washing machine

Most people find this page having searched for what the machine is doing rather than the code itself. On a Bosch washing machine, F16 usually shows up as one or more of these:

Machine door won't open
Door won't lock or click shut
Door lock light flashing
Door stuck shut with the load inside
Won't start even with the door closed
Not filling with water
No water going in
Takes for ever to fill

Recognise any of those? That is this fault, and the rest of this page explains what causes it and what you can check yourself.

What usually causes it

Door not pushed firmly enough to click shut
Laundry trapped in the door seal stopping it closing fully
Worn or broken door catch or hook on the door itself
Failed door interlock (the electrical lock behind the front panel) — the most common cause once the door plainly shuts
Damaged wiring to the interlock

What you can safely check yourself

Work through these in order. Anything beyond this — panels off, testing parts, anything to do with the wiring — is an engineer's job, and not one to attempt with the machine plugged in.

Open the door, redistribute the load and check nothing is caught in the seal, then close it with a firm push until you hear it click
Look at the catch on the door and the hole it goes into for anything obviously broken or bent
Switch off at the wall for a minute, then power up and try a short cycle again
Try a different programme — if it fails on all of them the lock is the suspect

Common questions about Bosch F16

What does F16 mean on a Bosch washing machine?

The machine doesn't believe the door is properly shut and locked, so it won't start filling. Before any Bosch washer takes water it has to confirm the door interlock has latched. F16 appears when that confirmation never arrives — either the door genuinely isn't caught, or the interlock itself has failed to report closed. The cycle stops at the very beginning, usually with no water having gone in.

Can I fix Bosch F16 myself?

There are 4 checks you can safely do yourself first.

Open the door, redistribute the load and check nothing is caught in the seal, then close it with a firm push until you hear it click.
Look at the catch on the door and the hole it goes into for anything obviously broken or bent.
Switch off at the wall for a minute, then power up and try a short cycle again.
Try a different programme — if it fails on all of them the lock is the suspect.

This one usually needs an engineer once you have tried them.

How much does it cost to repair Bosch F16?

£66 including VAT for an engineer to come out and diagnose it, or £84 in total including VAT if it is put right on the visit and no parts are needed. Any parts needed are quoted on site before we fit them — you decide. Every repair carries a 90-day workmanship guarantee.

Tried the checks and it's still showing F16?

This one usually needs an engineer once you have tried the checks above. Then it wants someone who can open it up.

What it costs, before you call: the price is the same whatever the fault turns out to be — £66 including VAT for an engineer to come out and diagnose it, or £84 in total including VAT if it is put right on the visit and no parts are needed. Any parts needed are quoted on site before we fit them — you decide. Every repair carries a 90-day workmanship guarantee.

Our own engineers, not a call centre. We cover Nottinghamshire, Derbyshire and Leicestershire — most washing machine faults are seen same day or next day.

Call 0115 648 0929 Book online — postcode and number is all we need

Outside our area? The explanation above still stands — take it to a local engineer and tell them the code. Knowing it saves them time and you money.

Other Bosch washing machine codes

All Bosch fault codes and repairs →

What this looks like when it happens

Repairs we cover near you

Written by the engineers at ASAP Repairs, 0115 648 0929. We repair these machines for a living in Nottinghamshire, Derbyshire and Leicestershire.

Bosch F16 error — washing machine