No 15 fuse keeps blowing please help?

Answer 1

This answer is generic and applies to ALL fuses or circuit breakers. Electrical conductors [wires] are only capable of safely carrying a certain amount of current [usually measured in Amps or milliamps]. If excess current [above the safe amount] is forced through the conductor, then the wire will heat, proportionally to the amount of overcurrent. To protect the wire and its insulation from damage or heating to the point of starting a fire, fuses or circuit breakers are inserted in the circuit [in series]. These overcurrent safety devices are designed and intended to "blow" or trip, shutting off the flow of electrical current, thus preventing catastrophy. When a fuse or circuit breaker continues to function, blow or trip, after replacement or reset, is indicative of excessive current flow, caused by either a short circuit or too much demand from oversized devices [like large add-on aftermarket sound amplifiers for example] added to the circuit. For safety, it is criticalthat when one of these circuit protection devices [fuse or breaker] repeatedly functions, you cease to use [turn on] the switch to that circuit UNTIL a fully qualified auto electrical service technician has accomplished a full trouble shooting procedure, AND CORRECTED [FIXED] THE CAUSEof the fuse blow or breaker trip!!!!!