המפסק של האור ליד הדלת לא עובד, אולי יש בעיה בתקע.

מפסק means switch. In this sentence, המפסק means the switch.

The ה at the beginning is the Hebrew definite article, equivalent to the in English.

So:

• מפסק = a switch
• המפסק = the switch

של is the normal everyday way to say of or to show possession/association.

So:

• המפסק של האור = the switch of the light = the light switch

This is a very common Hebrew structure:

• הספר של דני = Danny’s book
• הדלת של הבית = the door of the house

In this sentence, של האור tells you what kind of switch it is: the one connected to the light.

It is understandable and perfectly fine, especially for learners.

But in more natural or compact Hebrew, you may also hear:

• מפסק האור
• מתג האור

In everyday speech, many speakers might prefer מתג for a light switch, while מפסק can sound a bit more technical or formal depending on context. Still, המפסק של האור is clear and natural enough.

ליד means next to, near, or by.

So:

• ליד הדלת = near the door / by the door

In this sentence, it most naturally describes the switch:

• המפסק של האור ליד הדלת = the light switch by the door

Even though the phrase comes after האור, the meaning is usually understood from context. If someone wanted to make it even clearer, they could say:

• המפסק ליד הדלת של האור — but that sounds less natural
• מתג האור ליד הדלת — a very natural alternative

Because מפסק is a masculine singular noun, so the present-tense form agrees with it.

• המפסק ... עובד = the switch works / is working
• הדלת ... עובדת would be wrong, because דלת is feminine and would need a feminine form if this verb made sense with it

So here:

• לא עובד = does not work / isn’t working

The form עובד is masculine singular.

Yes. In Hebrew, עובד is very commonly used for machines, devices, systems, and electronics, not just people.

Examples:

• המחשב לא עובד = the computer doesn’t work
• הטלפון לא עובד = the phone doesn’t work
• המזגן לא עובד = the air conditioner doesn’t work

So המפסק ... לא עובד is completely normal Hebrew.

In the Hebrew present tense, there is usually no separate word for is / are.

So Hebrew says:

• המפסק לא עובד

Literally, this is something like:

• the switch not working

But in natural English, it means:

• the switch doesn’t work
• the switch isn’t working

This is a very basic and important Hebrew pattern.

אולי means maybe or perhaps.

Here:

• אולי יש בעיה בתקע = maybe there is a problem in/with the plug

אולי is fairly flexible in Hebrew. You can often place it at the beginning of a clause:

• אולי יש בעיה בתקע
• אולי המפסק לא עובד בגלל התקע

Beginning the clause with אולי is very common and natural.

יש means there is or there exists.

So:

• יש בעיה = there is a problem

This is one of the most common Hebrew patterns:

• יש זמן = there is time
• יש מקום = there is room
• יש שאלה = there is a question

So the second clause literally says:

• maybe there is a problem...

Because the preposition ב meaning in / at / with combines with the definite article ה.

So:

• ב + התקע becomes בתקע

This is a standard Hebrew contraction:

• בבית = in the house
• בדלת = in/on the door
• בתקע = in/at the plug

So בתקע means in the plug, at the plug, or sometimes more naturally in English, with the plug, depending on context.

תקע usually means plug.

So:

• בעיה בתקע = a problem with the plug

However, learners should know that in real-life electrical contexts, Hebrew distinguishes between:

• תקע = plug
• שקע = socket / outlet

So if you mean the wall outlet, many speakers would more naturally say:

• אולי יש בעיה בשקע = maybe there’s a problem with the outlet

The sentence as written uses תקע, so the problem is being located in the plug.

Somewhat, yes, but the original order is very natural.

Original:

• המפסק של האור ליד הדלת לא עובד, אולי יש בעיה בתקע.

Hebrew often puts information in this order:

1. the thing being talked about
2. description of it
3. whether it works or not
4. a possible explanation

You can move some parts for emphasis, but not all versions sound equally natural. For example:

• אולי יש בעיה בתקע; המפסק של האור ליד הדלת לא עובד
  Also grammatical, but it changes the flow.

The original sentence sounds like normal spoken Hebrew: first the problem, then the possible cause.