Ventilation not working - Page 2

SD1too · 13th October 2020, 11:55

Quote:

Originally Posted by MalteseMarc

... perhaps even change the relay to see if that cures the problem.

As Trikey says Marc, just temporarily swap it for the heated rear window relay (same fusebox, top RHS). I doubt that it will be faulty so no point in spending money unless you've proved it.

Quote:

Originally Posted by MalteseMarc

As regards the part I changed it is the one in Artics post no. 2, the heater transformer/ blower resistor.

Yes that's the one but it's not a transformer or a resistor. MG Rover's term is a "power transistor" but it's more complicated than that! It will probably contain an IC and other components since it works in conjunction with the ATC ECU.

Simon

MalteseMarc · 14th October 2020, 07:10

Thanks guys for your help. I tried swapping the relays just to see if that was the problem, sadly it didn't work.
So, looks like a replacement blower motor, which I ordered of a trader here, so will be putting that in.

Just one final question, is there a how to? (A detailed thread, hopefully with pictures in the replacement of the
Blower motor)

Many thanks,

Marc

MalteseMarc · 16th October 2020, 05:08

Well I've looked through the 'how to' section and there doesn't seem to be a technical guide in the replacement of the fan motor, so looks like I'll have to dig out my Haynes manual and give it a go from there. Is there any pointers, advice that anyone could give me that could help in doing this job? Mine is an auto, apparently that makes it a little less complicated:shrug

Kind regards,

Marc

14th October 2020, 07:10	#12
MalteseMarc Posted a thing or two Rover 75 CDTI connoisseur SE auto, 2004 Join Date: Sep 2008 Location: France Posts: 1,008 Thanks: 138 Thanked 70 Times in 52 Posts	Thanks guys for your help. I tried swapping the relays just to see if that was the problem, sadly it didn't work. So, looks like a replacement blower motor, which I ordered of a trader here, so will be putting that in. Just one final question, is there a how to? (A detailed thread, hopefully with pictures in the replacement of the Blower motor) Many thanks, Marc __________________ [SIGPIC][/SIGPIC]

16th October 2020, 05:08	#13
MalteseMarc Posted a thing or two Rover 75 CDTI connoisseur SE auto, 2004 Join Date: Sep 2008 Location: France Posts: 1,008 Thanks: 138 Thanked 70 Times in 52 Posts	Well I've looked through the 'how to' section and there doesn't seem to be a technical guide in the replacement of the fan motor, so looks like I'll have to dig out my Haynes manual and give it a go from there. Is there any pointers, advice that anyone could give me that could help in doing this job? Mine is an auto, apparently that makes it a little less complicated:shrug Kind regards, Marc __________________ [SIGPIC][/SIGPIC]