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Old 08-07-2010, 12:51 PM   #1
Jackduncan's Avatar
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Does anyone know if their is a fuse for the horn on top of the coach and where it may be or where I should start to look for the problem.

Jack & Brenda
2004 Alpine 40'
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Old 08-07-2010, 04:59 PM   #2
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I'm assuming your horn doesn't work.

There is a panel right in front of the passenger's seat that you need to pull to gain access to fuses & relays. The panel just uses velcro so use your fingers to get behind an edge and pull out from the bottom.

I had a problem with the horn and it turned out to be the relay that kept causing the fuse to blow. Check the fuses for a blown one ... I believe the horn fuse is a bus type fuse (15 Amp?). If the fuse blows when you try to use the horn, then it's probably a relay.

Bob Bowers (Surprise, AZ)
2003 Alpine Coach 40' FDTS
2014 Jeep Cherokee Lattitude
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Old 08-07-2010, 06:11 PM   #3
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Also assume that you are trying the horn with the air bags inflated--there is no air available for the air horns unless the suspension bags are inflated. I dont mean to ask the obvious but given the problems you are having with the jacks, you may not have the air pressure up.

So far its been radiator wax valve, slides, jacks and now horn--this is not a good trend for a newly acquired coach.
Old Scout
2003 40' MDTS
Garden Ridge, Texas
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Old 08-08-2010, 02:02 PM   #4
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I am assuming your air horns are not working when the engine is running and the suspension is inflated. If so the usual problem is the solenoid valve has failed. Depending on the year of the coach these can be anywhere in the front of the coach. Mine was hidden behind the top center front cabinet but some are behind the TV or anywhere in that area.
John and Mary Knight
2015 Newmar Ventana 4311 - wheelchair accessible
2015 Cadillac SRX Luxury AWD
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Old 08-08-2010, 07:29 PM   #5
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Originally Posted by Jackduncan View Post
Does anyone know if their is a fuse for the horn on top of the coach and where it may be or where I should start to look for the problem.
If it is like ours, the fuse is on a "black box" setup in front of the navigator's seat. Replaced fuse and solenoid twice and it kept blowing. Determined there is a problem in the 'box' so we had ours wired around the box - no problems since then (3 years ago this fall). In Texas that is part of the safety systems, so we had to have it done!

Barbara & David O'Keeffe
Figment II (Alpine 2002 36 MDDS)
On The Road since 2006
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