How do you wire a ceiling fan with a light kit to one switch?

Join the switched hot from the wall switch to the black lead and the blue lead of the fan under one wire nut. Connect the white lead to the white neutral of the cable and the grounds together. The fan and the light then come on and go off together. Check the fan instructions for the lead colors of your fan.

How do you wire a ceiling fan with two switches?

Run a 14/3 cable from the switch box to the fan box. Connect the fan switch leg (black of the 14/3) to the black lead of the fan and the light switch leg (red) to the blue lead. The white conductor is the shared neutral for the white lead. The second diagram shows it.

What do the ceiling fan wire colors mean?

On most fans black is the motor, blue is the light kit, white is the neutral and green is the ground. This is a maker convention, so the instructions that come with your fan decide. The wires in the ceiling are usually black and red for hot legs, white for neutral and bare or green for ground.

What if my fan has a blue wire but there is no second switch?

With one hot wire in the ceiling, the blue lead is either joined with the black lead so that the light works with the fan switch, or capped by itself, as the fan instructions say. The diagram for one switch shows the blue lead joined to the switched hot.

Can I put a ceiling fan on any ceiling box?

No. A box that is the sole support of a ceiling fan must be listed and marked as suitable for it (NEC 314.27(C)), and the weight limits depend on the marking. Check the marking on the box and the fan instructions.

Does a ceiling fan need a neutral wire?

Yes. The motor and the light kit both use the white lead, which goes to the neutral of the supply. The neutral does not go through a switch.

Can I rely on an AI-generated ceiling fan diagram?

No. Treat it as a picture. Image models often draw wrong connections, for example a neutral on a switch or the blue lead on the wrong leg. Check every AI picture against the exact diagrams on this page.

Is the ceiling fan wiring diagram generator free?

Reading the exact diagrams and the table on this page is free. The AI illustration tool starts free with 2 image credits, valid for 7 days, no card required. Image credit packs start at $4.99 (Lite, 8 image credits), and the credits do not expire.

Engineering Tool

Ceiling Fan Wiring Diagram Generator with a Light Kit

Exact ceiling fan wiring diagrams with a light kit: one switch for fan and light, or two switches on 14/3 cable. Planning drawings only.

Exact diagrams: one switch, or two switches on 14/3 cableBlack, blue, white and green fan leads markedConnection table built from the same list the checker usesAI illustration tool for your own fan circuit

Planning diagrams, not code advice. Turn the breaker off and test for voltage before you open a box. Planning diagram; follow local code and the device instructions; a licensed electrician decides what gets installed. Fan lead colors vary: the fan instructions decide.

Wiring a plain switch for a light? See the Light Switch Wiring Diagram Generator. For 14/3 cable between two switches, see the Three Way Switch Wiring Diagram Generator.

Ceiling Fan Wiring Diagrams

Exact diagrams drawn in code from a connection list checked against the fan maker instructions. Each shows the supply, the switch or switches, the wire nuts in the fan box, the four fan leads, the neutral, the ground and the cable runs. One fan with a light kit, 120 V.

Exact wiring diagram of a ceiling fan with a light kit on one switch: breaker hot to one brass screw of the wall switch, switched hot to one wire nut in the fan box with the black lead and the blue lead of the fan, neutral to the white lead, ground to the green lead — One switch for the fan and the light
The supply hot goes through the wall switch. In the fan box the switched hot, the black lead (motor) and the blue lead (light kit) go under one wire nut, so the fan and the light come on and go off together. The white lead takes the neutral, which never goes through the switch. The green lead joins the grounds.
Cable runs: 14/2 from the panel to the switch box, 14/2 from the switch box to the fan box.
The light has no separate control in this layout. Known simplification: the neutral is drawn as one wire from the panel to the fan. In the boxes it is spliced with wire nuts, and the grounds are joined with a pigtail rather than chained through device screws. Fan lead colors are a maker convention: the fan instructions decide.

Exact wiring diagram of a ceiling fan with a light kit on two switches and 14/3 cable: hot pigtailed to both switches, the black from the fan switch to the black lead of the fan, the red from the light switch through a wire nut to the blue lead, shared white neutral, one ground trunk from the panel to the fan switch and the fan with a branch to the light switch — Two switches: fan and light controlled separately
Two switches sit in one box and both take the supply hot through a pigtail. The fan switch feeds the black conductor of the 14/3 cable, which goes to the black lead of the fan (motor). The light switch feeds the red conductor, which goes to the blue lead (light kit) in a wire nut. The white conductor is the neutral for both and never goes through a switch.
Cable runs: 14/2 from the panel to the switch box, 14/3 from the switch box to the fan box (black, red, white, bare).
Known simplification: the neutral is drawn as one wire from the panel to the fan. In the boxes it is spliced with wire nuts, and the grounds are joined with a pigtail rather than chained through device screws. All grounds are one bonded node. Black for the fan and red for the light is the usual convention for the cable; the fan instructions and the markings on the fan decide which of its leads is which.

Connection Table: Fan Leads, Switch Legs, Neutral, Ground

The same connections as the diagrams. Every terminal appears once. On a plain single pole switch the two brass screws can be swapped with each other.

Layout	Connected together
one switch for fan and light	Supply hot + Wall switch brass screw on the supply side Wall switch brass screw on the fan side + Fan black lead (motor) + Fan blue lead (light kit) Supply neutral + Fan white lead (neutral) Supply ground + Wall switch ground screw + Fan green ground lead
two switches (14/3 to the fan): black lead = fan, blue lead = light	Supply hot + Fan switch brass screw on the supply side + Light switch brass screw on the supply side Fan switch brass screw on the fan side + Fan black lead (motor) Light switch brass screw on the fan side + Fan blue lead (light kit) Supply neutral + Fan white lead (neutral) Supply ground + Fan switch ground screw + Light switch ground screw + Fan green ground lead

Colors are insulation colors in NM cable and fan leads, not phases. The red conductor of the 14/3 cable is spliced to the blue lead of the fan in a wire nut. Your fan may use other colors: its instructions win.

This page covers one fan with a light kit. For a light on a plain switch, see the Light Switch Wiring Diagram Generator. For other wiring, such as home, automotive, or appliance systems, use the Wiring Diagram Maker.

AI illustration of your ceiling fan circuit

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Exact wiring diagram of a ceiling fan with a light kit on one switch: switched hot to the black and blue leads in one wire nut

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AI diagrams are drafts. Check every fan lead, the neutral and the ground against the exact diagrams.

Sources (checked October 2026): Hunter Fan, Wiring Your Fan on a Single or Dual Wall Switch, EC&M Code Q&A, Boxes at Ceiling-Suspended Fan Outlets (NEC 314.27(C), 2017 edition), and Mike Holt, Switches, based on the 2020 NEC (404.2).

What a ceiling fan wiring diagram shows

A ceiling fan wiring diagram shows which conductor in the ceiling box goes to which lead of the fan. A fan with a light kit has four leads: a black one for the motor, a blue one for the light kit, a white one for the neutral and a green one for the ground. The two things that decide the wiring are how many hot wires reach the ceiling box and how many switches you have. This page draws the two common layouts as exact diagrams from a documented connection list checked against the fan maker instructions and puts the same connections in a table.

One switch or two?

With one switch, the fan and the light share it. The switched hot goes to the black lead and the blue lead together (Hunter describes it as joining the ceiling black wire to the fan black and blue wires), so the fan and the light come on and go off together and the light has no separate control. Then set fan speed and light as the fan instructions describe.
With two switches you need a 14/3 cable between the switch box and the fan box. Its black conductor goes to the black lead of the fan, and its red conductor to the blue lead (Hunter describes the second black or red wire going to the blue lead). The white conductor is the shared neutral.
Not sure how a 14/3 cable is used in a switch circuit? The Three Way Switch Wiring Diagram Generator linked below shows 14/3 between two switches, and the Light Switch Wiring Diagram Generator shows a single switch.

Fan lead colors are a maker convention

Black for the motor, blue for the light kit, white for the neutral and green for the ground is what most fans use, and the diagrams on this page follow it. It is a convention of the fan makers, not a standard, so the instructions that come with your fan decide. A fan with a remote receiver or a wall control has extra leads and different wiring that this page does not draw.
If the ceiling box has only one black wire and your fan has a blue lead you do not need, the blue lead is capped on its own or joined with the black, as the fan instructions say.

The ceiling box must be rated for a fan

A fan moves and vibrates, so a plain light box is not enough. NEC 314.27(C) (as summarized by EC&M for the 2017 edition) requires an outlet box that is the sole support of a ceiling-suspended fan to be listed and marked by its maker as suitable for that purpose, and it must not support a fan heavier than 70 lb; for fans over 35 lb the marking must include the maximum weight, and a fan over 35 lb is supported independently of the box when the marking does not give a maximum weight. Later editions changed the wording, so check the edition your area has adopted.
In practice: look for the marking on the box, and hang the fan from the box or the bracket the fan instructions allow.

The neutral never goes through the switch

The switches interrupt the hot conductors. The white conductor carries the neutral from the panel to the white lead of the fan and is never connected to a switch. This is why the checker rejects a drawing with the neutral on a switch. Check what applies where you live: the code asks for a neutral at many lighting switch locations (NEC 404.2(C), with exceptions), and smart switches and fan controls often need one. Ask your local inspector or a licensed electrician.

Troubleshooting a ceiling fan

The fan runs but the light never comes on (two switches): the blue lead is not on the light switch leg, or the red conductor of the 14/3 is not spliced to it.
The light comes on with the fan and cannot be switched alone: the blue lead is on the same hot as the black lead. That is the one-switch wiring.
Nothing works: check the neutral first. The white lead must reach the neutral of the supply. If it does, have an electrician trace the switch legs.
The fan wobbles or hums: check the box and the mounting first. This is not a wiring diagram problem.

Before you open a box

Turn the breaker off and test every wire for voltage. A ceiling box can hold wires from another circuit.
Check how the boxes are wired before you copy a diagram. Many existing circuits do not match a textbook layout.
The diagrams show 14 AWG cable on a 15 A breaker. Use 12 AWG cable on a 20 A circuit, and match the cable, breaker and switch rating together.
Not drawn: pull-chain speed switches, capacitors, wall controls and remote receivers. Use the fan instructions for those.

Exact diagrams vs AI drafts

The two diagrams above are exact reference diagrams. They are drawn in code from a documented connection list, and a checker compares each drawing with a reference table. We do not show AI-generated wiring images as examples, because image models often draw wrong connections, such as a neutral on a switch or the blue lead on the wrong leg. The generator on this page still produces an AI illustration from your prompt. Treat it as a rough picture, compare it with the exact diagrams, and let a licensed electrician decide what gets installed. A diagram from this page is a planning picture, not a permit drawing, and it does not replace the fan instructions or the electrical code that applies in your area.