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Registered:
August 2002
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Fuse keeps blowing (thermo fans)
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Fri, 14 November 2003 06:24
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I have a twin thermo fan setup, they currently run off a toggle switch from the dash (on/off) , take power from the battery, switched by ignition and run a 15amp fuse with a 40amp relay.
Everything ran fine until 2 days ago when the fuse and the casing it was in totally melted or pardon the pun 'fused' together!
To get home i hacked at it and replaced the fuse with another 15amp.
Everything is fine and operational unitl just now when i deceided to turn them off. (already in the on position before ignition).
Flicked the toggle to off and blew the fuse.
Any ideas on where to start.
im sure cool1 will suggest its a bad earth.
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I supported Toymods
Banned User
Location:
Brisbane
Registered:
May 2002
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Re: Fuse keeps blowing (thermo fans)
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Fri, 14 November 2003 07:16
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| BlackSupra wrote on Fri, 14 November 2003 16:24 |
im sure cool1 will suggest its a bad earth.
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Yeah mate, Its always a bad earth so stop wasting peoples time by posting dumm questions like this 
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Location:
Brisbane
Registered:
June 2003
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Re: Fuse keeps blowing (thermo fans)
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Fri, 14 November 2003 07:25
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could it be they are sucking too much power? Try two 15 amps (1 for each fan) and see if they blow...
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Registered:
August 2002
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Re: Fuse keeps blowing (thermo fans)
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Fri, 14 November 2003 07:27
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they ran fine for 3 months before these past couple of incidents
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Location:
Brisbane
Registered:
June 2003
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Re: Fuse keeps blowing (thermo fans)
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Fri, 14 November 2003 07:28
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theres gotta be some sort of surge coming from somewhere...
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I supported Toymods
Banned User
Location:
Brisbane
Registered:
May 2002
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Re: Fuse keeps blowing (thermo fans)
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Fri, 14 November 2003 07:37
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Send me a msg on ICQ and i'll see if I can help ya. I cant be fucked on here 
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Registered:
August 2002
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Re: Fuse keeps blowing (thermo fans)
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Fri, 14 November 2003 12:27
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Pulled it apart, wired it up nicely and neatly, got rid of excess wiring.
Works a charm.
Go figure?
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Registered:
August 2002
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Re: Fuse keeps blowing (thermo fans)
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Fri, 14 November 2003 12:33
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And a big thanks to Cool1.
Without him i would never have picked the bad earth. 
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Location:
Melbourne
Registered:
May 2002
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Re: Fuse keeps blowing (thermo fans)
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Fri, 14 November 2003 16:30
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Tidy wireing is the key to reliable wireing!
Allan
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Location:
Gold Coast
Registered:
January 2003
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Re: Fuse keeps blowing (thermo fans)
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Fri, 14 November 2003 21:10
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use a 30amp curcuit breaker. I do not suggest fuses for thermos unless you use at least 60a.
On start up it is basically a dead short across the fan motors but once there running the current comes back.
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I supported Toymods
Banned User
Location:
Brisbane
Registered:
May 2002
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Re: Fuse keeps blowing (thermo fans)
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Sat, 15 November 2003 00:00
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Why would you use a circuit breaker when you can use a 10 cent slow blow fuse?
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Location:
Gold Coast
Registered:
January 2003
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Re: Fuse keeps blowing (thermo fans)
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Sat, 15 November 2003 19:30
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i use curcuit breaker because they auto reset. A fuse wont replace itself when it trips.
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I supported Toymods
Banned User
Location:
Brisbane
Registered:
May 2002
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Re: Fuse keeps blowing (thermo fans)
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Sun, 16 November 2003 00:47
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But a circuit breaker will trip before a slowblow fuse would.
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Location:
Sydney
Registered:
May 2002
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Re: Fuse keeps blowing (thermo fans)
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Sun, 16 November 2003 01:26
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shut up and just put a nail in the fuse holder....
backyard tips brought to you by Bugman
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