How can I tell if a 40A Fuse has a problem?
That 40a fuse you’re checking from is a major bus feed, with many sub circuits. You need to put an amp meter in place of the fuse to get a current reading. Then locate the sub circuits and pull each fuse and note the change. This should give you some clue as to which circuit has the problem.
What causes a fuse to blow on a blower motor?
If the blower motor relay develops any sort of problem that hinders its ability to properly limit and distribute power, it may cause the blower motor fuse to blow. Any sort of electrical spikes or excessive current from a bad relay will blow the fuse and cut power in order to protect the system.
How are fuses used to protect overcurrent circuit?
Overcurrent circuit protection can be accomplished with the use of either a traditional fuse or the more recently developed resettable PTC. Both devices function by reacting to the heat generated by the excessive current flow in the circuit.
Where does the current come from in a 240V circuit?
In the right hand circuit, the load “draws” current from 1 hot wire and the current “returns” through the other hot wire. Assuming the power is the same for both loads above, the current in the 240V circuit is half that of the 120V circuit.
That 40a fuse you’re checking from is a major bus feed, with many sub circuits. You need to put an amp meter in place of the fuse to get a current reading. Then locate the sub circuits and pull each fuse and note the change. This should give you some clue as to which circuit has the problem.
Do you have a 10 volt draw on Fuse witch?
An expert that got 10 achievements. An expert that got 5 achievements. An expert that has over 500 points. Re: I have a 10 volt draw on #15 fuse witch is 40 amp… Voltage is not the means to find the drain, even a minor switching circuit may show 12 volts.
Where is the 40A fuse on a Honda Odyssey?
I’ve pulled every other fuse, specifically in the driver side kick panel, the sliding door block by the battery, and the fuse block by on the passenger side of the engine bay (where the 40a fuse is). Since none of those other fuses make my test light go out I’m a little confused… I removed the stereo thinking that might be it, to no avail.
If the blower motor relay develops any sort of problem that hinders its ability to properly limit and distribute power, it may cause the blower motor fuse to blow. Any sort of electrical spikes or excessive current from a bad relay will blow the fuse and cut power in order to protect the system.