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Fan problem
I have 3.7L Cherokee (Patriot) and the cabin fan will only work at the
highest setting (full on). Is this likely to be burned out resistors or maybe a fuse? I don't have a wiring circuit to study. Anyone? Thanks Reg |
Re: Fan problem
That is usually a blown resistor pack.
Now 'why' the resistor pack failed is a whole other matter.... Too much heat from a fan about to die or a bad connection are the usual suspects. Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 'New' frame in the works for '08. Some Canadian Bush Trip and Build Photos: http://mikeromainjeeptrips.shutterfly.com Reg wrote: > I have 3.7L Cherokee (Patriot) and the cabin fan will only work at the > highest setting (full on). > Is this likely to be burned out resistors or maybe a fuse? > I don't have a wiring circuit to study. > Anyone? > Thanks > Reg > > |
Re: Fan problem
That is usually a blown resistor pack.
Now 'why' the resistor pack failed is a whole other matter.... Too much heat from a fan about to die or a bad connection are the usual suspects. Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 'New' frame in the works for '08. Some Canadian Bush Trip and Build Photos: http://mikeromainjeeptrips.shutterfly.com Reg wrote: > I have 3.7L Cherokee (Patriot) and the cabin fan will only work at the > highest setting (full on). > Is this likely to be burned out resistors or maybe a fuse? > I don't have a wiring circuit to study. > Anyone? > Thanks > Reg > > |
Re: Fan problem
My guess is the resistor pack design is crap.
On my old 01TJ it blew twice and on my 05TJ Rubicon it went once so far. It's a piss poor design that they refuse to fix. But rather increase the price from around 15 dollars to around 70 dollars to replace. I would assume the resisitor pack gets too hot and then eventually burns out. To increase the life of the resistor pack. would be to turn it off when you don't need air circulation, rather than have it at it's lowest speed setting. The switch to turn it off would be on the other button. Mike Romain wrote: > That is usually a blown resistor pack. > > Now 'why' the resistor pack failed is a whole other matter.... Too much > heat from a fan about to die or a bad connection are the usual suspects. > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 'New' frame in the works for '08. Some Canadian Bush Trip and Build > Photos: http://mikeromainjeeptrips.shutterfly.com > > > Reg wrote: > >> I have 3.7L Cherokee (Patriot) and the cabin fan will only work at the >> highest setting (full on). >> Is this likely to be burned out resistors or maybe a fuse? >> I don't have a wiring circuit to study. >> Anyone? >> Thanks >> Reg >> |
Re: Fan problem
My guess is the resistor pack design is crap.
On my old 01TJ it blew twice and on my 05TJ Rubicon it went once so far. It's a piss poor design that they refuse to fix. But rather increase the price from around 15 dollars to around 70 dollars to replace. I would assume the resisitor pack gets too hot and then eventually burns out. To increase the life of the resistor pack. would be to turn it off when you don't need air circulation, rather than have it at it's lowest speed setting. The switch to turn it off would be on the other button. Mike Romain wrote: > That is usually a blown resistor pack. > > Now 'why' the resistor pack failed is a whole other matter.... Too much > heat from a fan about to die or a bad connection are the usual suspects. > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 'New' frame in the works for '08. Some Canadian Bush Trip and Build > Photos: http://mikeromainjeeptrips.shutterfly.com > > > Reg wrote: > >> I have 3.7L Cherokee (Patriot) and the cabin fan will only work at the >> highest setting (full on). >> Is this likely to be burned out resistors or maybe a fuse? >> I don't have a wiring circuit to study. >> Anyone? >> Thanks >> Reg >> |
Re: Fan problem
Thanks for the replies, makes sense.
Do you know where this resistor pack is? It is an 2004 RHD. Thanks again Reg |
Re: Fan problem
Thanks for the replies, makes sense.
Do you know where this resistor pack is? It is an 2004 RHD. Thanks again Reg |
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