AC Run Capacitor For Air Conditioners, 2 Lines, in Multiple Sizes
Original price was: ر.س40.00.ر.س35.00Current price is: ر.س35.00. Inclusive of VAT
The capacitor is the first thing to check on any compressor or fan rotation fault, and it is the cheapest part in the circuit.
The classic symptom: the unit hums, nothing turns, and after a few seconds the breaker trips or thermal protection cuts in. Nine times out of ten the capacitor is the cause, not the compressor.
SAR 35 including VAT, reduced from 40, in stock.
What a Capacitor Actually Does
A direct explanation, without exaggeration:
A single-phase AC motor cannot start rotation on its own. It needs a rotating magnetic field, which requires current in a second winding phase-shifted from the first.
The capacitor creates that shift. It delays current in the start winding, producing the rotating field that gets the motor turning.
What a capacitor does not do, whatever you may read:
- It does not store energy for later use like a battery
- It does not reduce your electricity bill
- It contains no smart electronics
- It does not control the compressor by temperature
It is a simple passive component: two plates separated by a dielectric. It has one job, and that job matters.
Why Capacitors Fail Fast in Saudi Arabia
Heat is a capacitor’s primary enemy. Its rated life is calculated at a given operating temperature, and every increase above that shortens it markedly.
Replacement Guide
⚠️ Discharge the capacitor before touching any terminal. This is not an optional step.
- Isolate at the main breaker and wait five minutes.
- Discharge the capacitor with a suitable tool.
- Open the electrical panel in the outdoor unit.
- Photograph the wiring before disconnecting anything. Your most important step.
- Label each wire with numbered tape.
- Disconnect the wiring and release the mounting clamp.
- Compare new against old: µF first, then rated voltage, then dimensions and mounting form.
- Fit the new capacitor and secure it properly, as a loose capacitor vibrates and damages its terminals.
- Reconnect the wiring according to your photo and labels.
- Close the panel and restore power.
- Watch the start: the motor should begin immediately with no humming or hesitation.
Why Buy From Cool.sa
- Stock in Riyadh and Khamis Mushait. A capacitor is a same-day part.
- We match the rating before you pay. Send a photo of the old capacitor on WhatsApp 0540663777.
- SAR 35 including VAT, competitively priced.
- VAT invoicing for companies, contractors and facilities management.
- Bulk pricing for maintenance companies, hotels and property managers, capacitors are bought by the dozen.
- Fan motors, compressors and remotes from the same supplier, complete the repair in one order.
- AC capacitors in other ratings.
FAQS
Q1. How do I find the right rating?
Read the number printed on your old capacitor as µF or MFD. Send us a photo if you are unsure.
Q2. Can I fit the nearest rating if mine is out of stock?
No. The wrong capacitance strains the motor and burns it out over time. Match the number exactly.
Q3. What is the difference between a capacitor and a condenser?
A capacitor is a small electrical component that helps the motor turn. A condenser is the large copper coil in the outdoor unit that rejects heat. Entirely different parts, despite sharing one word in Arabic.
Q4. The unit hums and will not start, is it the capacitor?
Most likely yes. That is the classic failed-capacitor symptom. Inspect it visually first for bulging.
Q5. Why did the capacitor bulge?
Heat. The most common cause here is a dust-fouled outdoor coil raising the temperature of the whole unit.
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