Technical Punto Evo GP 1.4 8V 2010 blower issue

Currently reading:
Technical Punto Evo GP 1.4 8V 2010 blower issue

Sam11

New member
Joined
May 31, 2013
Messages
9
Points
1
Hi All,

New to Fiat and this Forum. Had my car 1 year and extremely happy with it.
Today , I tried to use the A/C (Manual air con), but I discovered the blower is dead.

A/C light comes on, but if I turn the fan to any position (1,2, 3 etc) no air or blower sound.

I tried to check the fuse box, but there is no reference in the hand book for the blower motor.

I searched this forum, there is a reference to a similar problem on a Mk2 Punto, but the location of the blower and the loom look different to mine.

Any help or suggestions appreciated.
Thanks, Sam
 
Hi and welcome ;)

Your fan doesn't work even in position 4 ?

Your manual page 203 say it is fuse 10 :
INT supply for brake pedal switch (NC contact), clutch pedal switch,
interior heating unit, convergence control unit, sound system capabilities,
voltage stabiliser control unit, reverse light on rear bumper,
water sensor on diesel filter, glow plug heating control unit, airflow meter,
brake booster sensor, switch coils on engine compartment fuse box

Waiting your feedback (as many people never respond to their own topics(n) )
 
Hi and welcome ;)

Your fan doesn't work even in position 4 ?

Your manual page 203 say it is fuse 10 :


Waiting your feedback (as many people never respond to their own topics(n) )

Hi and thanks for your reply

Fan does not work even in position 4.
I will check fuse 10 and update you.

Sam
 
I tried to find the dash fuse box, the manual says it is behind a cover secured with 2 screws. I could not find that panel/cover.

I found a fuse box behind the glove compartment (please see attached pic)
Is this the correct one for fuse 10. seems very hard to access

thanks
 

Attachments

  • IMAG0164.jpg
    IMAG0164.jpg
    628.1 KB · Views: 235
Okay, if you fan is not working even in position this thould not be his resistor.

It can be the fuse, check if reverse light on rear bumper work ? It is on the same fuse. If not, it is the fuse. Otherwise, it can be anything... between this fuse box (located on body computer) and the fan.

It seem really hard to access in your car, you have it in gloves box because your car is RHD. LHD had this behind a trap on driver side.
If you have an older Fiat, you could have a little tool helping a lot in the fuse compartiement. (of course never use metalic tool to do this).

If the fuse seem good, check it with a light / ohmmeter to be sure.
 
Last edited:
Okay, if you fan is not working even in position this thould not be his resistor.

It can be the fuse, check if reverse light on rear bumper work ? It is on the same fuse. If not, it is the fuse. Otherwise, it can be anything... between this fuse box (located on body computer) and the fan.

It seem really hard to access in your car, you have it in gloves box because your car is RHD. LHD had this behind a trap on driver side.
If you have an older Fiat, you could have a little tool helping a lot in the fuse compartiement. (of course never use metalic tool to do this).

If the fuse seem good, check it with a light / ohmmeter to be sure.

Thank you . Will check reverse light and fuse with ohmmeter.
 
Reverse light works, and fuse tests good with ohmmeter.
I wonder what to test next
 
Reverse light works, and fuse tests good with ohmmeter.
I wonder what to test next

With it being a 2010, you might still get the heater motor replaced under warranty (3rd year dealership). The other thing to check is to see if the motor speed switch (the one with 1,2,3,4 on it) works and is still plugged in. Not sure on how to get to that panel though. I'd be checking the main 12v feed to the switch (usually pin 1) and going from there.

Another option is if there is power, bridge out pin 1 to pin 2, then 3 and so on. If this works then the switch is at fault otherwise, check is resistor pack is getting power from the switch and then failing that, pull the heater motor out and test.
 
Last edited:
With it being a 2010, you might still get the heater motor replaced under warranty (3rd year dealership). The other thing to check is to see if the motor speed switch (the one with 1,2,3,4 on it) works and is still plugged in. Not sure on how to get to that panel though. I'd be checking the main 12v feed to the switch (usually pin 1) and going from there.

Another option is if there is power, bridge out pin 1 to pin 2, then 3 and so on. If this works then the switch is at fault otherwise, check is resistor pack is getting power from the switch and then failing that, pull the heater motor out and test.

Thanks for your input.
I believe warranty expired in March, but I will check that. I am tempted to start with the Motor and work backward on your list of things to the switch. The reason is I do not know how to pull the switch out.

Sorry about the torrent of Q's, but any tips or guides on how to take the blower out.
I can see where it is in the foot well, the guides section has one for Mk2 I believe.
thanks
 
Thanks for your input.
I believe warranty expired in March, but I will check that. I am tempted to start with the Motor and work backward on your list of things to the switch. The reason is I do not know how to pull the switch out.

Sorry about the torrent of Q's, but any tips or guides on how to take the blower out.
I can see where it is in the foot well, the guides section has one for Mk2 I believe.
thanks

see here yes the fuse box is different but the resistor pack and fan are in the same place

https://www.fiatforum.com/grande-punto-faqs/314051-heater-faq.html

(y)
 
It's a motor! needs a live and a earth to work, do you have both of these at the motor 2 wire plug....if so give it a kick! If not start checking fuses/wiring!

Just an update/resolution for this issue.

I unplugged the 2 connectors around the blower motor (one a two pin and one a 4/5 pin). They looked physically sound with no damage.
I checked the 2 pin connector with a ohm-meter. It showed 12V when I put the selector switch on the dash in position 4.
From that I figured the motor does have power supply to it. I decided to investigate the motor itself. I removed the blower motor (3 screws). It had leaves. I cleaned it, plugged it back in and it started working!

I am not 100% sure whether it was the leaves clogging the motor. What was strange was that the motor design had the internals / brushes etc exposed. I am not sure whether this contributed to the leaves going in side etc.

Thanks to all for your help
 
Just an update/resolution for this issue.

I unplugged the 2 connectors around the blower motor (one a two pin and one a 4/5 pin). They looked physically sound with no damage.
I checked the 2 pin connector with a ohm-meter. It showed 12V when I put the selector switch on the dash in position 4.
From that I figured the motor does have power supply to it. I decided to investigate the motor itself. I removed the blower motor (3 screws). It had leaves. I cleaned it, plugged it back in and it started working!

I am not 100% sure whether it was the leaves clogging the motor. What was strange was that the motor design had the internals / brushes etc exposed. I am not sure whether this contributed to the leaves going in side etc.

Thanks to all for your help

Thank for this update :) And happy that your fan is working !

It can be a connection issue, as you disconnect/connect plugs and solved it.
It can be a stuck motor, do you switch it off for long perdiods ? Or it is always on (pos. 1-4)
Or effectively it can be the leafs in it. But if they jammed the motor, I think you will hear a noise of it tried starting, or the fuse will blow in position 4 due to high current draw.
 
Thank for this update :) And happy that your fan is working !

It can be a connection issue, as you disconnect/connect plugs and solved it.
It can be a stuck motor, do you switch it off for long perdiods ? Or it is always on (pos. 1-4)
Or effectively it can be the leafs in it. But if they jammed the motor, I think you will hear a noise of it tried starting, or the fuse will blow in position 4 due to high current draw.


Yes, it may well be a connection issue. Unplugging and reseating connectors etc will have helped.
The blower is on regularly, varies from pos 1 to 4. The car is also driven daily.
I wonder if that shortens the life of the brushes or makes them unreliable
 
Back
Top