I have a 2000 Discovery. My AC switch won't light up and the compressor doesn't come on. It happened on a recent trip. I checked under the dash and replaced the relay but that disn't solve the problem...
I expect the last 'take it out' advice is more sour apples than practical advice. The last two pushers we had never gave trouble. The first, a used Coachmen, never worked right. The last two, a 2000 Itasca Horizon and a 2008 driver area on a hot day across Texas or Arizona, but on an average day they did fine.