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Hank F.
Hank F., Technician
Category: Small Engine
Satisfied Customers: 15275
Experience:  Certified on Onan and Generac generators
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why do generator capacitors blow

Resolved Question:

why do generator capacitors blow
Submitted: 6 years ago.
Category: Small Engine
Expert:  Hank F. replied 6 years ago.

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There are several things that will cause a capacitor to blow.


The biggest reason is that it is the weakest link in the genset - they simply go bad.


Other things that will cause it are:

The set surging (not running smoothly - revving up and slowing down constantly)

Over loading the genset

A short in the windings of the set.

Bad diodes, if the set has any


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