Thread: Advice needed, aircon and engine fan problem

Hi there, recently I purchased my first Landrover, Discovery 3 2006 TDV6 with 220k. Not long after picking the car up I realised the aircon was switching itself off in traffic whenever the car was stationary. So I had a radiator/ aircon workshop look at it. He put the car on his testing equipment and when the aircon did its switch off, the aircon pressure spiked off the chart. At first he couldn't find out why, but then he realised the engine fan wasn't hardly moving which was causing the car to overheat a little and the aircon to switch off. So he diagnosed that as the problem. So the next week I had the engine clutch fan replaced at the cost of $870.
Initially this fixed the problem but then the other day while sitting in traffic, the aircon switches itself off again, some two weeks after the new fan.
When I got it home I watched the fan while on idle and it was still moving, but very slow.

I'm hoping someone has had this issue before and knows the fix?? My hopeful guess is a engine coolant sensor or something cheap as the new electronic engine fan seems to have been a total waste of money.

Thanks in advance.

IIRC, someone here (maybe it was Gordon), had problems with the fan not activating... turns out the pins to the fan connector were corroded or not seating.