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Horn keeps blowing a fuse
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Robtonto
 


Member Since: 21 Oct 2019
Location: Cornwall
Posts: 7

United Kingdom 
Horn keeps blowing a fuse

I noticed after I brought my D3 that the horn wasn't working so I check fuses only to find it had blown. I replaced it tried it and it worked. Great I thought! A week or so went by and I needed to use the horn only for it to work first attempt but then to not again. Checked the fuses and it had blown again.
So being a bit of a kid at heart i found a 250DB airhorn on eBay and disconnected the old horn and wired in this new one. Jesus its loud but surprise surprise it only worked for a couple of times before the fuse blew again.

Any ideas?
  
Post #209403821st Oct 2019 11:00 am
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jenseneverest
 


Member Since: 12 Jun 2017
Location: somewhere
Posts: 758

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Manual Zambezi SilverDiscovery 3

i uprated the fuse for my air horn by 5amps, i forget what it was originally but whatever it is add 5amps to that and fit that fuse. ( i expect some electrical guru will have you add a remote relay if your to do it correctly but mine has been like that over a year now)

I originally had the air horn running off the disco's air tank, but alas a couple of uses and the suspension sank, now have it running off a separate pump, it is still loud but not like the Censored your pants loud anymore like it was off the disco....

Where did you mount your air horn ?
  
Post #209409821st Oct 2019 2:20 pm
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Robtonto
 


Member Since: 21 Oct 2019
Location: Cornwall
Posts: 7

United Kingdom 

Hi
I'll give it a go and see how it lasts. I've got it mounted behind the grill which isn't easy to see but you certainly hear it.
  
Post #209410621st Oct 2019 2:35 pm
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Coo
 


Member Since: 01 Jun 2015
Location: Fife, Scotland
Posts: 284

Scotland 2005 Discovery 3 TDV6 HSE Auto Bonatti GreyDiscovery 3

This post mentions possible issues with clock spring...
- maybe worth investigating before bunging bigger fuse which may turn your wire into a meltable mess!

https://www.disco3.co.uk/forum/horn-139082...p;start=15
  
Post #209412421st Oct 2019 3:25 pm
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