Dont know if this is any help. I have just read another question with a response from a punto tech. They said that there is a connector at the base of the heater located on the passenger side under the glove box. Apparently this gets knocked when passengers get in and out and is often the problem.
I had checked all my fuses but they seemed ok. I also tried a relay from another place to see if that was the problem but it still didnt work. I read the tech message and have just been out to my car and hey presto, it works.
It did stop again when I pushed the wires behind the heater out of the way but I pulled them out again, it worked and I pushed them behind as far as I could carefully so as not to stop it working again. Such a relief in this weather.
If you still have no joy locate the question with answer from punto tech he may be able to help further.
Ros
November 2010
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