Cigarette lighter not working.

[kitch]

I tried using my sat nav on the weekend to find out that my cigarette lighter isn't working anymore. I've checked the fuse and that's ok, even swapped it for a known working one. I've recently have the heater matrix valve replaced, and wondered if the supply could have been knocked by accident?

Tia.

[Brianmoooore]

Connectors may have been left off or pulled off of the bottom of the lighter. The supply to the lighter passes through the heater plug and socket, but if everything else works, this shouldn't be relevant.

[kitch]

By everything else, do you mean the heater/blowers? As they all work fine.