Le digicode ne fonctionne pas bien aujourd'hui.

In French, common nouns usually need an article. So digicode normally appears as le digicode when you are talking about a specific keypad/code-entry device.

A native English speaker might want to say just digicode, but French usually prefers:

• le digicode
• un digicode
• or another determiner such as ce digicode, mon digicode, etc.

Also, digicode is treated as masculine, which is why the article is le.

Digicode is a very common French word for a keypad entry system or door code panel, especially at the entrance to a building.

This can confuse English speakers because it looks like it might mean the code itself, but in French it often refers to the device you use to enter the code.

So in context, le digicode usually means the keypad/intercom-style code box at the door.

Standard French negation is usually built with two parts:

• ne
• pas

They go around the conjugated verb:

• fonctionne = works / is working
• ne fonctionne pas = does not work / is not working

So:

• Le digicode fonctionne. = The keypad works.
• Le digicode ne fonctionne pas. = The keypad does not work.

This is one of the most basic French negative patterns.

Yes, in informal spoken French, many speakers drop ne and say:

• Le digicode fonctionne pas bien aujourd'hui.

That is very common in conversation. However, in standard written French and careful speech, you should keep ne:

• Le digicode ne fonctionne pas bien aujourd'hui.

So for learners:

• with ne = correct in formal/written French
• without ne = common in everyday speech

Because the subject is le digicode, which is singular.

The verb fonctionner must agree with its subject:

• je fonctionne
• tu fonctionnes
• il/elle/on fonctionne
• nous fonctionnons
• vous fonctionnez
• ils/elles fonctionnent

Since le digicode is like it, the correct form is fonctionne.

Yes, both are possible, and both can mean to work for a machine or device.

• Le digicode ne fonctionne pas bien aujourd'hui.
• Le digicode ne marche pas bien aujourd'hui.

The difference is mostly one of tone and usage:

• fonctionner can sound a bit more neutral or formal
• marcher is very common in everyday speech

Both are natural. A learner should recognize both.

Both are possible, but they are not always identical in tone.

• ne fonctionne pas bien = is not working well
• fonctionne mal = is working badly / is malfunctioning

In many contexts, they are very close. But pas bien often feels a little softer or less direct than mal.

Compare:

• Le digicode ne fonctionne pas bien aujourd'hui.
• Le digicode fonctionne mal aujourd'hui.

Both are correct. The first one may sound slightly more conversational or less harsh.

French often places time expressions like aujourd'hui at the beginning or end of a sentence.

So all of these are possible:

• Le digicode ne fonctionne pas bien aujourd'hui.
• Aujourd'hui, le digicode ne fonctionne pas bien.

Putting aujourd'hui at the end is very natural and common. It works a lot like English, where today can also go at the end.

Here, bien modifies the verb phrase fonctionne.

So:

• fonctionner bien = to work well
• ne pas fonctionner bien is not the usual order
• ne fonctionne pas bien = does not work well

The idea is not that the keypad is good, but that it is working properly or performing well.

In standard French negation, pas usually comes after the conjugated verb, while ne comes before it:

• ne + verb + pas

So:

• fonctionne
  becomes
• ne fonctionne pas

This is different from English, where not often comes before an adjective or after an auxiliary verb:

• does not work

French does not say:

• ne pas fonctionne for this sentence

That word order would be wrong here.

Yes, aujourd'hui is written as one fixed expression, with an apostrophe in the middle.

Historically, it comes from older elements meaning something like on the day of today, but for a learner, the important thing is simply:

• memorize aujourd'hui as the normal word for today

It is not optional punctuation. You should write it exactly this way:

• aujourd'hui

A careful pronunciation would be roughly:

luh dee-zhee-kohd nuh fonk-syohn pah byan oh-zhoor-dwee

A few useful notes:

• Le is often very light.
• digicode is pronounced with a zh sound in the middle: dee-zhee-kohd
• In everyday speech, ne may become very weak or disappear entirely.
• aujourd'hui is often the hardest word here for English speakers, especially the jour sound.

If spoken informally, you may hear something closer to:

• L'digicode fonctionne pas bien aujourd'hui

But for learning, it is best to keep the full standard form in mind.

Yes. The addition of aujourd'hui suggests a temporary situation or at least focuses on today's problem.

Without aujourd'hui, the sentence is more general:

• Le digicode ne fonctionne pas bien. = The keypad is not working well.

With aujourd'hui:

• Le digicode ne fonctionne pas bien aujourd'hui. = Today, it is not working well.

That can imply:

• maybe it usually works
• maybe it is acting up today
• or the speaker is specifically reporting today's situation rather than making a general statement