Electrolux F27 microwave: what it means & what to check

Stop using it for now. Carrying on with this fault risks further damage or a leak. Switch it off at the wall until it has been looked at.

What F27 actually means

The control electronics have hit a fault they can't identify, so the interface has shut the appliance down as a precaution.

On this Electrolux, F27 comes from the Smart Board \ and is logged as an unknown or unclassified error rather than a specific failed part. When it occurs, the user interface sends a system-off command to the power board and holds the F27 message on the display until you switch the appliance off yourself. Because nothing points to a particular sensor or motor, it is a case where the boards need reading properly rather than guessing.

What F27 looks like on a Electrolux microwave

Most people find this page having searched for what the machine is doing rather than the code itself. On a Electrolux microwave, F27 usually shows up as one or more of these:

Microwave 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
Machine not turning
Won't spin
Hums or buzzes but nothing moves

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

A one-off electronic glitch or interruption in the mains supply
Communication trouble between the display panel and the power board
A fault on the Smart Board itself
Software or configuration mismatch after a board has been changed

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.

Switch the appliance off at the wall, leave it for a minute, then power it back up — an isolated glitch often clears and does not return
If it comes straight back, note whether it appears the moment you switch on or only when you start a programme; that helps the engineer
Check the door closes and latches cleanly, so the appliance is starting from a normal state

Which Electrolux models show F27

F27 means the same thing on this model. If yours is not listed, the explanation above still applies — the code is set by the control board, not the model number.

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Common questions about Electrolux F27

What does F27 mean on a Electrolux microwave?

The control electronics have hit a fault they can't identify, so the interface has shut the appliance down as a precaution. On this Electrolux, F27 comes from the Smart Board \ and is logged as an unknown or unclassified error rather than a specific failed part. When it occurs, the user interface sends a system-off command to the power board and holds the F27 message on the display until you switch the appliance off yourself. Because nothing points to a particular sensor or motor, it is a case where the boards need reading properly rather than guessing.

Can I fix Electrolux F27 myself?

There are 3 checks you can safely do yourself first.

Switch the appliance off at the wall, leave it for a minute, then power it back up — an isolated glitch often clears and does not return.
If it comes straight back, note whether it appears the moment you switch on or only when you start a programme; that helps the engineer.
Check the door closes and latches cleanly, so the appliance is starting from a normal state.

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

How much does it cost to repair Electrolux F27?

£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 F27?

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 microwave 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 Electrolux microwave codes

All Electrolux fault codes and repairs →

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

Electrolux F27 error — microwave