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Fuses That "Blow" Repeatedly
The following answer applies to any electrical circuit, as in a vehicle or in a building, alternating current [ac] or direct current [dc].
Fuses [and Circuit Breakers] are safety devices designed and installed in electrical circuits TO PROTECT the conductors [wires] from short circuits and overload conditions which can cause extreme overheating that can result in damage to the insulation and the conductors. And worse the possibility of a FIRE which could destroy the vehicle, house, or other structure in which the circuit is located.
When a fuse [and replacement fuses, or Circuit Breakers trip] "blow," especially if it happens repeatedly, is an indication of an UNSAFE CONDITION in that circuit, usually a short.
The proper "fix" is for a qualified technician, who knows what he/she is doing, to troubleshoot the involved circuit, find and identify the defect, and make proper repair [s], BEFORE replacing the fuse again [with the properly sized fuse or before resetting a circuit breaker].
Some ignorant few will suggest installing a larger fuse or breaker to solve the problem, BUT that will only amplify the problem, not solve it. Do not follow "bad" advice and install a larger fuse in a misguided attempt to correct the problem. To install a larger fuse would almost guarantee damage to the wiring and an electrical system fire.
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∙ 14y ago
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What would cause fuses to blow in a 1994 cavalier?
possible grounded or bare wire
MDL vs ADL fuses?
The difference between MDL fuses and ADL fuses are that MDL fuses are a slow blow fuse with a long time lag. ADL fuses on the other hand, are normal blow fuses with a medium time lag.
Why would your fuses blow after releasing the emergency brake on your 1988 mustang?
because there is a short somewhere
Why does a electric unit blow fuses periodically during the winter heating season?
Your electric unit can blow fuses during the winter when you are running your heater for several reasons. The main reason would be that you have a faulty ground on your heater.
What would cause all the fuses in your 1997 Mazda 626 to blow?
A short circuit either in your wiring system or electrical panel could cause your fuses to blow. Most likely, it would be caused by a burned out wire which is frayed and touching a piece of metal in your vehicle.
What causes fuses to blow on tail lights 1990 buick centry?
A short to ground causes all fuses to blow. If you have a trailer connecter then start there first.
Why are fusses not good for short circuit currents?
A: FUSES are very good for short circuit protection. On the other hand a short over current may not make the fuse to blow since it requires heat caused by the current to blow. There are fuses that are meant to blow fast and some fuses are designed to blow slow depending on the circuit requirement
Can you run a 15 amp mig welder on 10 amps?
Not successfully. It is designed to work with the higher current so it would blow the breaker on a 10 amp circuit.
Does not blow air at all?
Check your fuses, it might be shot
Why do fuses blow?
Fuses usually blow because something powered by them draws too much power. -The solution is to fix the fault, NOT to fit a bigger fuse as I have seen some people do.
Where are the fuses for towing lights on a 2002 ford explorer?
Fuses blow when there is a short circuit or an over current condition.
What would cause your fuse to blow when you turn on your lights on your 1993 Mazda 323 the fuse to the tail lights on dash lights blow?
I'm not sure I understand your question. I can't tell if you have one or two different fuses "blowing." The only thing which causes fuses to "blow" is a short circuit condition in the circuit which the fuse protects. IF you have two different circuits blowing fuses, then you have at least two short circuit faults. j3h
