Why and how the fuse blows.

Рет қаралды 91,212

11 жыл бұрын

I explain the mechanics behind the electric fuse.
This video is part of the heating and cooling series of training videos made to accompany my websites: www.graycoolingman.com and www.grayfurnaceman.com to pass on what I have learned in many years of service and repair. If you have suggestions or comments they are welcome.
If you are a homeowner looking to repair your own appliance, understand that the voltages can be lethal, the fuels are highly flammable and high pressures are used. Know your limits.

Пікірлер: 40

@222nightwolf 8 жыл бұрын

Small genius invention.Electrical stuff never gets old.

@jeetenderkakkar7570 3 жыл бұрын

700

@ahmedshaheenredcar21341 8 жыл бұрын

good job bro

@vrg1988 6 жыл бұрын

Very very good

@mustafamoussa 9 жыл бұрын

A fuse saved my life

@grayfurnaceman 9 жыл бұрын

Mustafa Moussa They can do that. GFM

@ryeann2567 2 жыл бұрын

How?

@bobbydigital8 11 жыл бұрын

Thanks.

@rafaeltercero3411 2 жыл бұрын

I see that a lot of questions are being answered so, I hope mine does. I have a 1978 Datsun and both the tail light don't work, the stop light works, and the turning light works, but the other one don't. I looked underneath the steering wheel, and saw a cable disconnected. I connected the cable, turn on the car and lights, and it blew the fuse, any idea why and/or how to fix it?

@davidpinzon3620 2 жыл бұрын

How did You apply the current?

@peloneretana9460 6 жыл бұрын

I have a 2000 dodge caravan the hazards work fine but the turn signal dont it pops the 10amp fuse

@mchammer1809 3 жыл бұрын

Put a 20A in

@mypigeonsandme3686 3 жыл бұрын

Bhai mery pass electric heater hai to us k rad jaldi jal jate hai please help guide me .. can I contact with dimmer

@elainecostigan1486 9 жыл бұрын

I'm having problems with the fuse in my York FG8C10016MU11A gas furnace. It blows immediately when I power it up..I imagine it's something to do with the 24v portion of the system. I changed out the Tstat and wire, but have no clue where to start looking for the short...Any advise would be appreciated. Again, awesome series of videos... Thanks !

@grayfurnaceman 9 жыл бұрын

Elaine Costigan Remove all wires from the terminal board. Replace fuse, then attach one wire at a time starting with common. When the fuse blows after attaching a wire you know where to look. Hope this helps. GFM

@rocklobster2929 5 жыл бұрын

How many amps did it take to blow

@tf3confirmedbuthv54 4 жыл бұрын

Rock Lobster looks like a 20A

@cheechnchong20 6 жыл бұрын

I have a 2002 F150 xlt. And my 5 Amp Fuse Keeps Blowing up. Can somebody Help me. Please

@grayfurnaceman 6 жыл бұрын

I did a couple of videos on this, go to my channel and search "Furnace low voltage short diagnosis part 1". GFM

@mikecod6806 2 жыл бұрын

When the plug in is not grounded like a vintage one. Is that a possible cause?

@grayfurnaceman 2 жыл бұрын

No. Ground is not fused. If there is a short to ground, the fuse may blow, but the lack of a ground, if anything, will not make the fuse blow. GFM

@martwainthompson9735 7 жыл бұрын

can someone tell me why my Nissan Serena 98 ignition fuse keep on blowing ?

@coolmw2player 7 жыл бұрын

MarTwain Thompson have you tried plugging it in

@transitionguy4309 5 жыл бұрын

You should take fuse a little bit more rating than power supply

@coolmw2player 3 жыл бұрын

Transition Guy NO DONT NO NO NO DO NOT YOU WILL MELT STUFF STOP RIGHT NOW

@badrlinux6786 8 жыл бұрын

hi all, 12v car vacum blow my 12v cigaret lighter 12v , i replace 3 time fuses whit 20amp & 25amp it blow after i connect the vacum and push the on boton, can some help me to find a solution, can this vacum cause probleme to my car ?? NB! (in the manual 12v cigarette lighter work whit 20amp)

@grayfurnaceman 8 жыл бұрын

Either the motor in the vac is locked up or the wiring to it has shorted. GFM

@badrlinux6786 8 жыл бұрын

the motor in the vac can rotate i her it, about the wiring vac can not be on if there is a shorted circuit.

@grayfurnaceman 8 жыл бұрын

If it is rotating and it has a rating plate of less than 20 amps, the motor probably has a shorted winding. GFM

@badrlinux6786 8 жыл бұрын

thank you for ur support and answer #grayfurnaceman what can u sugest me to do ? i use a higer fuse amp like 30 or 35 amp?

@grayfurnaceman 8 жыл бұрын

Get a new vac GFM

@Guyhakverdi 9 жыл бұрын

Why they blow up sometimes out of nowhere? I have seen some fuses even blow up when there is no short.

@grayfurnaceman 9 жыл бұрын

Guy Hakverdi The eternal question. My thoughts are that its done by gremlins. GFM

@Guyhakverdi 9 жыл бұрын

grayfurnaceman Today my customer called me because his new Trane XB95 Furnace wasn't working(only 3 years old and I installed 3 years ago). He left for vacation last week and came back yesterday, and this happened. I went overthere this morning, and change the fuse start working right away. I checked everything no short or anything. A little bit dusty furnace though. I am just confused, I hope I don't have to go back there.

@grayfurnaceman 9 жыл бұрын

Guy Hakverdi I went on one today that had blown several low voltage fuses. In the outdoor unit there was one place where the thermostat wires took a sharp corner against a sheet metal guard. Noticed a tiny arc spot less than 1/32d of an inch across. You have to look very close sometimes. GFM

@anarwhal6582 5 жыл бұрын

I‘m curious, I didn’t hear what part is weak link? I don’t think I heard the words “weak” or “link” enough... All kidding aside, thanks!

@yugn5507 4 жыл бұрын

Coke baby coming soon

@scripter2510 6 жыл бұрын

Stop eating while recording OMG

@basha0810 6 жыл бұрын

At 2 minutes you say, "Watch what happens when this blows." So, I'm sitting on the edge of my chair waiting and then you TALK for another MINUTE finally saying that when it happens, we'll hardly see it. Seriously dude?