Ecost Posted June 7 Share Posted June 7 Hi everyone. Ive joined your forum to see if anyone has had any similar issues to me with their vehicle. To briefly explain the fault. The fan speed control knob regularly does not control the fan speed correctly. There will be a short 1-2 second burst of fan blower then down to minimum fan speed. The lights on the fan speed control knob do not change. If I select the max cooling or max heating the same happens. occasionally the system works exactly as it should. My questions please. 1. I have heard this is a known fault.? 2. Is this diagnosable with fault codes with any diagnostics.? 3. My research online has seen there have been instances where a fan resistor has been the cause? Any advice would be very gratefully received . Thanks Quote Link to comment Share on other sites More sharing options...
unofix Posted June 7 Share Posted June 7 A1. Never seen that fault mentioned on this forum before. A2. With FORScan and the vLinker FS lead it may very well be possible to get a DTC for the HVAC system. A3. The failure of the resistor pack (older vehicles) causes speeds 1,2,3, to not be available and the fan will only run on speed 4. FORScan (for windows): https://forscan.org/download.html vLinker FS cable: https://www.amazon.co.uk/Vgate-vLinker-Adapter-FORScan-MS-CAN/dp/B0952P4MLP Quote Link to comment Share on other sites More sharing options...
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