My fuses for the lights on my Ford Fiesta get 'hot' why is this?
Answers:
If the fuse block is getting "hot" it is because there is increased resistance at the fuse block. This can be caused by two small of wiring, corrosion of the contacts of the fuses or simply to much current going through the fuse block.
The suggestion to check for a recall is a good one.
If the car is out of warranty I would personally modify the headlight circuit to become a control circuit using a relay and heavier wiring to act as the primary circuit for the lights. By doing this you reduce the amount of current going through the fuse to that being used by the coil of the relay not the full current of the headlights.
The same process can be used to reduce the current going through the fuse block for all the other lights on the car too, although it is a little more complicated to wire up, it can be done.
I had to do this to my Dad's VW Dasher. He needed more light on the road from his headlights. The wattage of the headlights was limited by the fuses and wiring. So I turned all the headlight circuits into control circuits and used relays and heavier wiring to take the increased current for the higher power bulbs he wanted to use. To say the least, the amount of light created by the new headlight bulbs was like turning on the sun at night in front of his car when I was done. You could see clearly at over half a mile, any object on the road.
Why are you touching your fuses?
pore carol
A fuse is the weak link in the circuit, and should get hot to a degree, but when you say hot, how hot do you mean? When they get too hot they will burn in to. The lights pull a lot of amperage, and 10 amp doesn't seem like the correct amperage for the light circuit. 25-30 amp would seem more in line with what it should be, but the way they are made today, nothing would surprise me. If in fact this is the correct amperage for the circuit, then check for a bad switch, loose wires, or bad ground or not enough ground. It doesn't mean it will melt down, but some vehicles are now designed to use tiny switches, and some to the point of being too small. Check for a recall on the lighting system on your vehicle. Some have been recalled I'm sure for this problem. Good Luck!
Because the lights take a lot of power all that power going through that fuse makes it hot, if it doesn't blow then you have no problem.
I think you should ask nick J.
He's tarting round in a heap aswell!
have you added lights to the circuit or increased the wattage of the bulbs? Are the fuses the right rating?
Buy a fire extinguisher!
The answers post by the user, for information only, UKQnA.com does not guarantee the right.