Blomberg E03 fridge freezer: what it means & what to check

What E03 actually means

The sensor that measures the air temperature inside the fridge section has stopped giving the control board a sensible reading, so the fridge no longer knows how cold it actually is.

Each compartment has a small temperature probe feeding the control board. When the fridge air probe reads as an open or short circuit, the board flags E03 and lights the alarm indicator. On these Blomberg no-frost models the appliance does not shut down — it drops onto a fixed, pre-set cooling routine instead, so the compressor and fan keep running but on a timer rather than on real temperature readings. The fault clears itself the moment the probe reads normally again.

What E03 looks like on a Blomberg fridge freezer

Most people find this page having searched for what the machine is doing rather than the code itself. On a Blomberg fridge freezer, E03 usually shows up as one or more of these:

Not cooling
Freezer not freezing
Ice building up at the back
Food going off in the fridge
Running constantly and never getting cold
Noisy fan
Not getting cold evenly
Cuts out after a few minutes

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

The fridge air sensor itself has failed internally (the most common finding)
A loose, corroded or damaged plug where the sensor connects to the control board
Damp or condensation getting into the sensor wiring, often near the back of the fridge liner
Chafed or pinched sensor cable, usually where it passes into the cabinet
Less often, a fault on the control board's sensor input

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.

Turn the appliance off at the socket for a minute and back on — a genuine sensor failure will bring the code straight back, an odd glitch may not
Check the doors are closing fully and the seals aren't folded over, as constant warm air and condensation don't help the sensors
Make sure food and packaging aren't jammed against the rear or side walls of the fridge, blocking airflow
Note whether the fridge is actually still getting cold, and whether it's now running colder or warmer than usual — that's useful information for the engineer

Which Blomberg models show E03

E03 means the same thing on all 5 of these models. If yours is not listed, the explanation above still applies — the code is set by the control board, not the model number.

7219945781 · 7263646283 · 7264346383 · 7278149513 · 7287745715

Common questions about Blomberg E03

What does E03 mean on a Blomberg fridge freezer?

The sensor that measures the air temperature inside the fridge section has stopped giving the control board a sensible reading, so the fridge no longer knows how cold it actually is. Each compartment has a small temperature probe feeding the control board. When the fridge air probe reads as an open or short circuit, the board flags E03 and lights the alarm indicator. On these Blomberg no-frost models the appliance does not shut down — it drops onto a fixed, pre-set cooling routine instead, so the compressor and fan keep running but on a timer rather than on real temperature readings. The fault clears itself the moment the probe reads normally again.

Can I fix Blomberg E03 myself?

There are 4 checks you can safely do yourself first.

Turn the appliance off at the socket for a minute and back on — a genuine sensor failure will bring the code straight back, an odd glitch may not.
Check the doors are closing fully and the seals aren't folded over, as constant warm air and condensation don't help the sensors.
Make sure food and packaging aren't jammed against the rear or side walls of the fridge, blocking airflow.
Note whether the fridge is actually still getting cold, and whether it's now running colder or warmer than usual — that's useful information for the engineer.

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

How much does it cost to repair Blomberg E03?

£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 E03?

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 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 Blomberg fridge freezer codes

All Blomberg 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.

Blomberg E03 error — fridge freezer