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> Heater Only Working On Fan Switch Position 4, Caused by a blown resisitor pack
langers
post 20th April 2008 18:26
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Hello all,

Im new to the alfa scene, used to my Fords.

Basically, the heaters only work on setting 4....anything else and they're off. HELP! What do i need to change, where can i find it and how do i get to it etc?

Cheers, Langers


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Hybrd
post 20th April 2008 18:29
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there is a resistor pack in the passenger footwell. it controls 1-3 and 4 bypasses and has full power. its knackered.


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langers
post 20th April 2008 18:34
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ooo straight to the point. Where abouts can i find this resistor pack in the passenger foot well? and i take it that its a case of plug and play.


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returner
post 20th April 2008 18:37
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you will find a round box behind the glove box, to the right of it right up against the bulk head is the resistor pack, it has 1 plug in it {3 pins as a remember but might be 4} it is held in place with 2 self tapppers they can be difficult to get to with a screw driver {use a 1.4" ratchet with extention and uj and a phillps drive
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Hybrd
post 20th April 2008 18:37
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QUOTE(langers @ 20th April 2008 19:34) *
ooo straight to the point. Where abouts can i find this resistor pack in the passenger foot well? and i take it that its a case of plug and play.

ha ha ha ha no such luck!!!!! its right at the bottom behind the glove box right pig to get at and undoing the retaining screws is a right job!! it has a multi plug on it and is around 4 inchs wide you should be able to see it.


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automan
post 20th April 2008 18:49
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this type of malfunction can be repaired on resistor box.there is termo fuse,which is blown in such case.check its value,buy new one(electronic store) and solder it in place of old.


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langers
post 20th April 2008 20:21
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Iv already got another resistor pack thingy from my mates alfa. Just got to get the dam thing out!

Any other tips to get to it?


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Greigjolly
post 21st April 2008 12:06
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doing the same thing myself - taken the ash tray/clock lump out, the panel with all the heater controls on, the top panel with the vents on - can see the resistor sat behind the heater control panel, can touch it but cant get at it properley to remove the wires to it or the two screfs that hold it in...aggghghgh!!!
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Greigjolly
post 21st April 2008 12:08
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behind the glove box??? eh? mines behind the heater control panel.....???
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Greigjolly
post 21st April 2008 12:18
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its a grey box, roughly four inches long, big plug on one end, smaller one on the other...will post pics...
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Greigjolly
post 21st April 2008 12:26
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am i dealing with the 'heater control resistor' not the 'heater fan resistor' ?????????

very confused...
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Greigjolly
post 21st April 2008 13:44
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i hate cars. im buying a bicycle...
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Greigjolly
post 21st April 2008 15:40
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right. so, ive taken all the dash off as described in the FAQ guide. Ive swapped over the resistor that ive got (which ive come to the conclusion is the 'heater control resistor' and the problem of the fan only working on position 4 not 1 2 or 3 is unchanged. So i guess its the other resistor (the one behind the fan) that i need to swap. where from/how much?

its been a loooong day...
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Greigjolly
post 21st April 2008 16:53
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anyone got one for sale...
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Hybrd
post 21st April 2008 18:41
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QUOTE(langers @ 20th April 2008 21:21) *
Iv already got another resistor pack thingy from my mates alfa. Just got to get the dam thing out!

Any other tips to get to it?

as returner said... screw drived bit in a socket on a uni joint on an extention bar on a ratchet...... all in 3/8


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Greigjolly
post 21st April 2008 18:46
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thats what i did! literlaly just taken it out. odd green looking thing. just wondering actually, what is it that 'breaks' on these? think it would be possible to just replace the thermistor on the side???

Greig
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Hybrd
post 21st April 2008 18:50
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QUOTE(Greigjolly @ 21st April 2008 19:46) *
thats what i did! literlaly just taken it out. odd green looking thing. just wondering actually, what is it that 'breaks' on these? think it would be possible to just replace the thermistor on the side???

Greig

replyed in your thred. welcome to the forum bte.... whistle.gif


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Greigjolly
post 21st April 2008 18:55
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yeah just seen...cheers lol yeah i lost 1-3 all at once - will see if i can replace it.

thanks for the welcome, been on here a year though since I bought my 145...

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Greigjolly
post 21st April 2008 19:01
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so have you sucessfully done this before then?
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Greigjolly
post 22nd April 2008 11:37
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ok so ive got hold of the correct thermo-fuse (the silver bit on the side) wasnt easy to get hold of. I am planning on replacing it thisafternoon - apparently though soldering it isnt a good idea as its whole purpose in life is to be sensitive to heat, so I plan to solder two crimps onto the resistor unit the crimp the thermo-fuse to that... fingers crossed...
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