Common Capacitor Problems & How to Prevent Them

Is your fan not spinning or your AC not cooling? The capacitor might be the real culprit.

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What’s a Capacitor?

Capacitors store and release energy to help appliances start and run smoothly. They’re the heartbeat of motors, fans, and compressors.

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2. Stabilize voltage, reduce surges

A faulty capacitor can stop your appliances, cause breakdowns, and shorten lifespan. Ignoring early signs can lead to costly replacements.

Problem 1 — No Operation

When a capacitor stops working, appliances won’t start at all. Usually caused by internal damage or short circuits.

Problem 2 — Overheating

Too much current or poor ventilation overheats the capacitor. Heat reduces its life and performance.

Problem 3 — Swelling or Bulging

If your capacitor looks puffed up—it’s failing. Often caused by overvoltage or high temperature.

Problem 4 — Leakage

Leaking fluid or residue means the internal material has broken down. Leads to lower efficiency and risk of short circuit.

Problem 5 — Wrong Rating

Using a capacitor with incorrect voltage or capacitance makes circuits unstable. Always match the specs with appliance design.

Problem 6 — Aging

Like any component, capacitors wear out over time. Their performance drops after years of use.

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How to Prevent Failures

– Choose reliable brands. – Install correctly with proper wiring. – Keep capacitors cool and clean. – Regular checks save money and downtime.

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Why Quality Matters

High-quality capacitors mean fewer breakdowns and longer appliance life.  For manufacturers, dealers, and users—quality equals trust.

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