10 Possible Causes of a Blown Fuse and What to Do - Happy An Overloaded Circuit. You should be able to spot the culprit in this case by looking for an outlet or A Short Circuit. A short circuit is a type of electrical fault. Faults, in general, occur when an electrical A Ground Fault. A ground fault is a specific type of short circuit in which the unintentional pathway An Arc Fault. Arc faults result from problems with wiring and terminal connections–for example, a See full list on happyhiller What is the purpose of fuse and relay box in cars? - Quora Aug 27, 2019Originally Answered: what is the purpose of fuse and relay box in cars? Fuses are used to protect the wiring in an electrical circuit from being destroyed in the event of a short circuit. A relay is use to allow a small current to close contacts and control a much larger current. Elavon Portal Log In. Forgot Username? | Forgot Password? | Forgot Password?