Fan problem...

RattyB · 5th April 2018, 19:00

Hi all

I have the original MGR 2 speed fan fitted to my RV8. It has been upgraded to gold resistor specification. I have a problem with it, and before I take it to an auto electrician I was hoping obtain some possible causes as to the problem

I thought I had lost my low speed fan again, and that the new resistor was U/S. I did the demist test, and the fan goes straight into high speed. The same thing happens if I turn on the a/c: straight into high speed.

However yesterday I was idling the car and running the system on econ mode (ac off). I was faffing with the climate temp controls when the low speed fan cut it, did it thing for thirty 30 seconds, and switched off again. That would suggest there is nothing wrong with the resistor.

Any idea whats a foot here? The fan low/high speed fan seems fine with the a/c off, but with it on it want's to stay in high speed. It has been suggested that it's a gateway ecu problem, but I can't find anything that mentions that as a possible cause.

5th April 2018, 19:00	#1
RattyB Regular poster Rover 75 Join Date: Oct 2016 Location: BOGNOR REGIS Posts: 78 Thanks: 16 Thanked 2 Times in 2 Posts	Fan problem... Hi all I have the original MGR 2 speed fan fitted to my RV8. It has been upgraded to gold resistor specification. I have a problem with it, and before I take it to an auto electrician I was hoping obtain some possible causes as to the problem I thought I had lost my low speed fan again, and that the new resistor was U/S. I did the demist test, and the fan goes straight into high speed. The same thing happens if I turn on the a/c: straight into high speed. However yesterday I was idling the car and running the system on econ mode (ac off). I was faffing with the climate temp controls when the low speed fan cut it, did it thing for thirty 30 seconds, and switched off again. That would suggest there is nothing wrong with the resistor. Any idea whats a foot here? The fan low/high speed fan seems fine with the a/c off, but with it on it want's to stay in high speed. It has been suggested that it's a gateway ecu problem, but I can't find anything that mentions that as a possible cause.