Quick Answer: What Happens When A Ceiling Fan Capacitor Goes Bad?

What happens if capacitor fails in fan?

Most fans have a “start capacitor” that gives them the boost they need to start turning.

If this capacitor burns out, it must be replaced or the blades won’t turn or will turn improperly..

What causes a ceiling fan capacitor to fail?

Over current:- Over current flows to the circuit due to low voltage . This low voltage can appear in domestic used celling fan if we don’t use voltage stabilizer . This huge current causes large heat dissipation in the circuit that leads to burn the capacitor.

Can ceiling fan run without capacitor?

So, to answer your question simply, The fan won’t work without a capacitor, even if you rotate it manually because capacitor is needed to create magnetic flux which makes the fan rotate. If capacitor lost its capacitance it will generate low flux which causes low speed.

How long does a fan capacitor last?

approximately 20 yearsCapacitors have a limited life span. Most are designed to last approximately 20 years, but a number of factors can cause them to wear out quicker.

Can I replace a ceiling fan capacitor with a higher UF?

Yes, as long it has the same specifications as the one you are replacing (i.e., number of wires, voltage rating, uf rating, etc.). If the uf rating is different the fan will likely still work but may not have the same exact speed.

How can you tell if a fan capacitor is bad?

The capacitor is usually a black box inside the switch housing of the fan. If the case appears burnt or melted in any way, that is also the sign of a bad capacitor and it should be replaced. Keep in mind that there may be other components in the circuit with the defective capacitor.

Is it OK to use a higher uF capacitor?

Short answer: No. Long answer: It depends upon what that capacitor is doing in circuit. It is usually safe to replace a capacitor with the same value but with a higher voltage rating but the capacitance may be at its value for a reason. There’s more than just capacitance at play, too.