Scheduled visit
The bathroom extractor fan is not working
A bathroom or utility extractor fan does not run, or runs so weakly that it barely moves the air, so the room stays humid after a shower. The fan may be silent when switched on, or it may hum without turning. The room's moisture then sits on the walls and mirrors, which is what the fan is there to prevent.
Electrical
Burning smells, arcing and warm faceplates are treated as emergencies and take priority over everything else.
Call nowRequest a repair on WhatsApp01LIKELY CAUSES
What usually sits behind this symptom, and what tells one cause from another.
A failed fan motor
The fan does not turn and does not respond to the switch, or hums without spinning.
A wiring or switch fault
The fan is fine but the switch or the wiring to it is broken, so it never receives power.
A blocked or restricted duct
The fan runs but the duct is blocked, so the air cannot leave and the fan barely moves anything.
A dirty or seized fan blade
Dust and grease have built up on the blade or the bearings, slowing or stopping it.
02BEFORE ANYONE VISITS
What you can safely check.
- Check whether the fan is switched on and whether it hums or is silent.
- Feel at the grille for airflow when it runs.
- Check whether the fan is on a timer or a humidity sensor that may not be triggering.
- Do not open the fan or its wiring yourself — it is connected to the lighting or a dedicated circuit.
03WHAT WE MEASURE
We check whether the fan is receiving power and whether it turns, then look at the duct and the fan itself. A fan that hums but does not turn points at the motor or a seized blade, while a fan that runs but moves no air points at a blocked duct. The cause is found before anything is replaced.
04IN A VILLA
Villa bathrooms and utility rooms rely on extractor fans to move moisture out, and the fan often runs from the same circuit as the lighting or a timer. Over years, dust and humidity build up on the blade and in the duct, so a fan that was fine at handover slows down and eventually stops, leaving the room to hold its own moisture.
05THE FIX
Which repair, and when.
A bathroom without a working extractor keeps its moisture, and moisture on walls and ceilings is how mould and peeling paint start. A small fan fault left alone becomes a damp problem in the room it was meant to protect.
Replace the failed fan or motor
The fan motor has failed and will not turn.
Repair the switch or wiring
The fan is fine but is not receiving power.
Clear the duct and clean the fan
The fan runs but the duct is blocked or the blade is fouled.
06WHAT DECIDES THE FIX
The same symptom can lead to different repairs. These are the things that decide which way it goes.
- Whether the fan hums or is silent — a hum points at the motor or a seized blade, while silence points at the power or the switch.
- Whether there is airflow — a fan that runs but moves no air points at the duct, not the motor.
- Whether the switch or timer works — a fan that never receives power is a wiring fault.
- How much dust is on the blade — a fouled blade is cleaned before the motor is blamed.
- The age of the fan — an old fan that has failed is replaced, not patched.
07HOW A VISIT GOES
What to expect when we come out, and why the order matters.
Confirm the fan and the switch
The switch and any timer are checked, and the fan is tested for power.
Listen and feel for airflow
A hum without spinning, or spinning without airflow, points at the right place.
Check the duct
A blocked or restricted duct is checked, because it strangles even a healthy fan.
Clean, repair or replace
The duct is cleared, the wiring is fixed, or the fan or motor is replaced.
Re-test airflow
The fan is run and the airflow felt again to confirm it is moving moisture out.
08KEEPING IT FROM RETURNING
Once it is fixed, these steps make the fault less likely to come back.
- Clean the fan grille and blade regularly — dust and grease slow it down.
- Run the fan during and after showers so moisture is moved out, not left in the room.
- Check the duct is clear if the fan seems weaker than it used to be.
- If the fan hums or slows, get it looked at before it stops entirely.
- Keep the timer or humidity sensor working, so the fan runs when it is needed.
09Typical villa electrical callout
AED 180 – 1,200 depending on scope
Socket, fitting and single-circuit faults sit low in the band. Fault tracing across multiple outdoor circuits and board work sit higher. Work requiring utility notification is scoped separately and discussed before it starts.
10QUESTIONS
- Why does the fan hum but not spin?
- A fan that hums without turning usually has a seized blade or a failing motor. It is getting power but cannot move, and it should not be left humming.
- Is it the switch or the fan?
- It can be either. If the fan is silent and never responds, the switch or wiring is checked first, because the fan may be fine and simply not receiving power.
- Can a blocked duct stop the fan?
- It will not stop the motor, but it stops the airflow, so the fan runs while moving nothing. The duct is checked when the fan seems weak.
- Why is the bathroom still damp after a shower?
- Because the moisture is not being moved out. If the fan is weak or not running, the room holds its moisture, which is how damp and mould start.
- Do I need an electrician for a fan?
- The fan is connected to a circuit, so if the problem is electrical it should be handled by someone who works on electrics, especially in a bathroom.
- Is a weak fan better than none?
- A little, but a weak fan is a sign the blade is fouled or the duct is restricted, and it is worth fixing so the room actually dries out.
- How long should a bathroom fan last?
- With clean blades and a clear duct it should last for years. Dust and humidity are what shorten its life, so regular cleaning helps.
- Why does the fan come on with the light?
- Many bathroom fans are wired to run with the light or a timer, so they vent when the room is in use. If it is not coming on with the light, that wiring or timer is worth checking.