Cranium

Active Member

• May 4, 2015

• #1

I've just installed air horns and I'm confident they are wired correctly.
Worked fine for the first few blasts then one long blast and the fuse blew.
Any ideas what could make the fuse blow? It is a 10a fuse as recommended in the instructions..

 

biketeacherdave

Well-Known Member

• May 4, 2015

• #2

you should have connected them up using a relay

 

Cranium

Active Member

• May 4, 2015

• #3

Yes used a relay, all connected as per the instructions, was working fine.

 

Cranium

Active Member

• May 4, 2015

• #4

Terminal 30 to Live supply with in line 10a fuse.
Terminal 85 to original horn supply.
Terminal 87 to air horn +.
Terminal 86 to earth.
- on air horn to earth

 

J

jackmac

New Member

• May 4, 2015

• #5

10A fuse isn't very big, most other horns seem to use a larger fuse than that. Have you got a link to the horn?

 

Cranium

Active Member

• May 4, 2015

• #6

Vehicle Lighting, Bulbs, Lamps, Auto Electrical, Chargers, Battery Packs - Ring Automotive

 

Cranium

Active Member

• May 4, 2015

• #7

Video of the moment the fuse blew!
http://m.youtube.com/watch?feature=youtu.be&v=FzDlyC33Guk

 

fanatic

RESPECT IS EARNED, BEATINGS ARE FREE ;-)

Forum Sponsor

• May 4, 2015

• #8

check with manufacturer I would expect larger fuse

 

Cranium

Active Member

• May 4, 2015

• #9

The instructions supplied state a 10a fuse...

 

Cranium

Active Member

• May 4, 2015

• #10

 

Cranium

Active Member

• May 4, 2015

• #11

 

Cranium

Active Member

• May 4, 2015

• #12

I used the positive activated type (Fig. A) part of the instructions.

 

Cranium

Active Member

• May 4, 2015

• #13

I now notice that in the diagrams the fuse is rated higher? 12V-25A, the text instructions state 10A...

 

fanatic

RESPECT IS EARNED, BEATINGS ARE FREE ;-)

Forum Sponsor

• May 4, 2015

• #14

miss print then

 

J

jackmac

New Member

• May 4, 2015

• #15

Put bigger fuses in until it doesn't blow in that case

 

Cranium

Active Member

• May 5, 2015

• #16

Called the technical help line who answered straight away and quickly answered the question, it should be a 20A!

So their instructions are wrong!