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Aircon Fan Not Spinning: Which Fan, and What It Means
Your aircon has two fans doing two different jobs, and 'aircon fan not spinning' is really two different problems wearing one name. The indoor blower pushes cooled air into your room; the condenser fan outside dumps the collected heat. Either one stopping halts useful cooling — but the diagnosis, urgency and cost differ by which has quit, so the first question is simply: which fan are you looking at?
Indoor fan stopped: unit on, air still
The unit lights up, maybe the compressor even runs, but nothing blows from the vents. Suspects in order: the blower motor's capacitor (the small component that gets motors spinning — frequent flyer in failures), the motor itself worn or seized, an obstruction physically jamming the blower wheel, or the control board not commanding the fan. One warning sign worth acting on early: a fan that hums without turning, or turns only after a struggling delay — that's a capacitor or motor announcing retirement while still technically employed.
Condenser fan stopped: the more urgent version
Glance at your ledge unit while the aircon runs: the fan behind the grille should spin steadily. If the compressor hums away with the fan stationary, heat has nowhere to go — the condenser cooks, protection cutouts start firing (explaining any shut-off-after-minutes behaviour), and sustained running this way genuinely stresses the compressor. Same suspect list as indoors — capacitor, motor, obstruction, board — but the stakes are higher because the compressor's wellbeing is attached. Treat a stopped condenser fan as a this-week booking and rest the system meanwhile.
The capacitor, again
If you've read our other diagnosis pages, you've met the capacitor before — it's the component behind a remarkable share of fan and compressor start failures, and the reason 'my fan died' often ends far cheaper than feared. Capacitors weaken with heat and age, then one day can't kick their motor over. The repair is a straightforward component swap; the diagnosis distinguishing a $-modest capacitor from a $$-motor replacement is exactly what the $50 visit (waived if you proceed) is for. Never accept a motor replacement quote from anyone who didn't test the capacitor first.
What's safe to check yourself — and where to stop
Safe: observing which fan is stopped, listening for humming-without-spinning, and checking nothing obvious (a dislodged filter indoors, debris visible through the condenser grille) is jamming things. Not safe: poking anything into either fan, spinning blades by hand 'to help it start', or opening panels — capacitors specifically hold charge after power-off, which is why they're a technician's job even when the part itself is cheap. Report what you observed on WhatsApp; it shortens the visit.
Frequently asked questions
The fan hums but doesn't spin. Is that the motor dying?
More often it's the capacitor failing to start an otherwise healthy motor — the hopeful diagnosis, since it's a modest fix. Genuine motor failure is possible too; electrical testing on-site separates them, and the $50 fee folds into whichever repair you approve.
My condenser fan spins sometimes and not others. Still urgent?
Intermittent spinning is a weakening capacitor or motor mid-decline — the failure is scheduling itself. It's less alarming than fully stopped, but book promptly anyway: every session it fails to start is a session of condenser overheating.
Can I keep using the aircon with the indoor fan dead?
There's nothing to use — no airflow means no cooling delivered — and depending on the fault, the coil can ice over while the compressor works into still air. Switch that unit off and use other rooms until the visit.
How much does a fan repair cost in Punggol?
Capacitor-class fixes sit at the friendly end; motor replacements cost more and vary by model. Both get a fixed quote after the $50 diagnosis (waived when you proceed), and where a motor on an old unit isn't worth it, we'll say so and price the alternatives honestly.
First, identify which fan has stopped — then tell the WhatsApp assistant 'indoor' or 'condenser' plus whether it hums. Diagnosis slots at /book, Mon-Sat across Punggol.