Grundig E21 fridge freezer: what it means & what to check

What E21 actually means

The fridge section has been too warm for too long, and the appliance is warning you that the food inside may have spoiled.

Grundig's control board watches the fresh food compartment sensor and raises a high temperature alarm once that sensor reads above 15°C continuously for an hour. Worth knowing: on this model the alarm doesn't usually appear as the text "E21" at all — the display shows the highest temperature the fridge reached, in degrees, which is Grundig's way of telling you how bad it got. The clock resets as soon as the compartment cools back down, so the alarm is a record of what happened rather than a fault that stops the appliance working.

What E21 looks like on a Grundig fridge freezer

Most people find this page having searched for what the machine is doing rather than the code itself. On a Grundig fridge freezer, E21 usually shows up as one or more of these:

Fridge freezer 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 cooling
Freezer not freezing
Ice building up at the back

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

Fridge door left open or not fully closed, often by a shelf item or a drawer sticking out
A power cut while you were out, so the appliance stopped cooling for a while
A large load of warm shopping put in at once
Perished or distorted door seal letting warm air in
Blocked air vents inside the compartment stopping cold air circulating
A genuine cooling fault — fan, sensor or refrigeration problem — if the fridge is still not getting cold

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.

Check the door shuts fully and the seal sits flat all the way round with nothing trapped in it
Make sure nothing is pushed up against the air vents inside the fridge compartment
Think about whether there has been a recent power cut, or the door was left ajar — that alone explains most of these alarms
Switch off at the wall for a minute, then back on, and see whether the fridge cools normally over the next few hours
Check the appliance isn't hard against a wall or in an unusually hot spot, which makes it struggle in warm weather

Which Grundig models show E21

E21 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.

7278346313

Common questions about Grundig E21

What does E21 mean on a Grundig fridge freezer?

The fridge section has been too warm for too long, and the appliance is warning you that the food inside may have spoiled. Grundig's control board watches the fresh food compartment sensor and raises a high temperature alarm once that sensor reads above 15°C continuously for an hour. Worth knowing: on this model the alarm doesn't usually appear as the text "E21" at all — the display shows the highest temperature the fridge reached, in degrees, which is Grundig's way of telling you how bad it got. The clock resets as soon as the compartment cools back down, so the alarm is a record of what happened rather than a fault that stops the appliance working.

Can I fix Grundig E21 myself?

There are 5 checks you can safely do yourself first.

Check the door shuts fully and the seal sits flat all the way round with nothing trapped in it.
Make sure nothing is pushed up against the air vents inside the fridge compartment.
Think about whether there has been a recent power cut, or the door was left ajar — that alone explains most of these alarms.
Switch off at the wall for a minute, then back on, and see whether the fridge cools normally over the next few hours.
Check the appliance isn't hard against a wall or in an unusually hot spot, which makes it struggle in warm weather.

This sometimes clears with those checks. If it comes back, it needs looking at properly.

How much does it cost to repair Grundig E21?

£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 E21?

This sometimes clears with the checks above. If it comes back, it needs looking at properly. 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 fridge freezer 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 Grundig fridge freezer codes

All Grundig 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.

Grundig E21 error — fridge freezer