Technical '06 Grande Punto Interior heater fan not working...

[stiener]

Hi,

I jumped into my '06 Grande Punto this morning to find that the heater fans are not working what so ever. I'm no mechanic so I do not have a clue why they would just stop working all of a sudden, they were working fine when driving home yesterday. Whatever setting I turn the switch to (1-4) there seems to be no noise coming from the heaters at all, therefore non of the fans are operating when I turn the switch so my first guess would be that the fuse has gone... maybe?

I've consulted my manual to find out about every fuse other than the interior fan heaters as there is nothing stated about them anywhere.

Could anyone here tell me what fuse I'd need to look up for the interior heater fans so I can locate the fuse to see if this is the problem.

Thanks.

 

[matty seasider]

https://www.fiatforum.com/grande-punto/288489-burnt-wiring-heater.html
https://www.fiatforum.com/grande-punto/292686-my-fan-heater-stopped-working.html
https://www.fiatforum.com/grande-punto/303933-heating-ventilation-system-not-working.html
https://www.fiatforum.com/grande-punto/292812-2006-fiat-punto-grande-heater-blower-problem.html
https://www.fiatforum.com/grande-punto/267394-heater-blower-problem.html

To name just a few threads, if in doubt click search button and enter desired topics, there's at least 108 threads with relation to heater fan problems

 

[stiener]

Thanks so much for your response Matty the first link you sent came in so handy I've fixed it already... for now anyways, it seem'd it was just a dodgy connection a quick reconnect of the block connector and its back up and running again. I should really use the search button more often.

Thanks again!

 

[matty seasider]

Thanks so much for your response Matty the first link you sent came in so handy I've fixed it already... for now anyways, it seem'd it was just a dodgy connection a quick reconnect of the block connector and its back up and running again. I should really use the search button more often.

Thanks again!

Gladtohelp, amazing what that search button can do, if you go to advanced search, you can select to search just in grande Punto section which narrows results down considerably!

 

[ianal09]

had this problem before but luckily it was on the warranty period and they've change the loom that were totally busted

 

[welshy0007]

I had the same problem so replaced the resistor as that had burnt out. Now I am having trouble with the wiring that goes to the motor which I close to the resistor. I have to pull the wires up hard to get the motor to work. When I let this go the fan speed seems to slow down until it stops. Not good this time of year when I need to Dr mist the Windows. Any ideashow to solve this problem with the loose connections?

 

[AshMobes]

I had the same problem so replaced the resistor as that had burnt out. Now I am having trouble with the wiring that goes to the motor which I close to the resistor. I have to pull the wires up hard to get the motor to work. When I let this go the fan speed seems to slow down until it stops. Not good this time of year when I need to Dr mist the Windows. Any ideashow to solve this problem with the loose connections?

I'm having the same issues as you described, my wire keeps coming lose from the motor and I can't figure out how to keep it in place. I'm not sure why it keeps coming lose but Im guessing the clips have worn out and are no longer holding the wire in place. A new unit and connector would most likely fix it, unless anyone has another way around it.

 

[Leeharden]

Having the same issues as the above 2 posts and kinda glad its not just me , my fan can go off wen going over a speed bump and back on going ovee another. My fan never lasts more than 2 mins wen on and stationary. But the weird thing is that it doesnt jus cut off , u can hear the gradual slowing down off the fan with the odd n random speed UP ? Before mine cuts off completly it kinda rattles a tad then goes off , if i push the connecter that goes into the fan it will start and stay on for aslong as its pushed up ... ive changed the resistor pack and had the fan out and connected to a seperate battery pack andnit spins like new . My nxt step is to check the voltage coming out from the connector to the fan . Will keep posted

 

[Andy Monty]

Well you appear to have found the issue bet if you unplug the heater fan you will find the plug is all melted...

See the FAQ section at the top of the grande punto page

 

[Leeharden]

Hey andy , yeah pretty clued up on it as ive scanned these forums for the past year or so regarding this is issue. Just need to fix it now with the cold mornings creeping in.

 

[Andy Monty]

Whilst it's bits might as well clean the motors slip ring


Appropriate size cable crimps and a pair of ratchet crimping pliers would probably be a half decent fix

A full new loom would be ideal


http://www.ebay.co.uk/itm/like/2722...3D710-134428-41853-0%26rvr_id%3D1100343996748

 

[Leeharden]

Is the loom not a tricky fix or are they guides on here ?

 

[cancunia]

A while ago I posted something on this subject, using the search should throw something up. When I had this problem I came across a post on a Corsa forum which showed how to join the fastest fan speed wire with the resistor pack output wire. They way they designed the circuit means that both wires can be made to carry the load from the resistor pack instead of one wire, it also means you may get away without changing the loom. I did this on mine and it's been fine for over a year.

 

[Leeharden]

A while ago I posted something on this subject, using the search should throw something up. When I had this problem I came across a post on a Corsa forum which showed how to join the fastest fan speed wire with the resistor pack output wire. They way they designed the circuit means that both wires can be made to carry the load from the resistor pack instead of one wire, it also means you may get away without changing the loom. I did this on mine and it's been fine for over a year.

So what have u done to fix it , change the resistor pack ?

 

[cancunia]

No, the resistor pack was new on mine. It had been replaced to fix the heater not working problem which it did for about a week after I bought the car. The problem was also in the connector to the loom. You can also replace that connector and cut / crimp the loom.
I needed the car for work so had no time to wait for an over priced connector and so joined the fan high speed wire on the loom to the heater feed wire, but leaving them all connected at the resistor pack allows 2 pins to carry the load. Here's my earlier post, it's the very last one in the thread.

https://www.fiatforum.com/grande-punto/288489-burnt-wiring-heater-3.html

 

[digger58]

I seem to remember that a Corsa replacement wiring connector is available a lot cheaper than Fiat. Perhaps somebody can elaborate on this.

 

[Leeharden]

Nice one thanks , heres the idiot coming out of me now , but what exactly do i need to have/buy in order to do this ? And is it best to have sum electrical knowledge

 

[Leeharden]

I seem to remember that a Corsa replacement wiring connector is available a lot cheaper than Fiat. Perhaps somebody can elaborate on this.

Yeah am sure they are , a read a corsa d or somthing has the same loom for cheaper prices. Am gna go and record my fan later n post to see what you guys reckon