I've got a 1999 Terrano, and the interior heater has recently (within the last 2 weeks) started only working when on 'maximum'...this isn't a catastrophic fault obviously, but it's a bit of a pain in the a*se not being unable to keep it ticking over on low to keep the windows demisted when the car is full of wet clothes and sopping dogs (as it was yesterday after a very wet day's shooting up in the Lakes!).
The 'slider' still moves, but nothing happens on the lower settings, and then it only works when on 'full'.
Any ideas?? And if it's a garage fix, any idea how much to rectify??
To be able to fix it myself, it really will have to be both ridiculously easy and capable of being performed by an idiot (ie me).....by way of context, I'm a soft-handed office monkey that is quite adept at Excel spreadsheets, but can just about identify an engine when you lift the bonnet and think that if summat can't be fixed with a BFH then it's time to call in a professional.....