Fan replacement woes - Page 2

frankgoldstar · 28th June 2017, 19:14

Dear All,

and this time the right version of the "new" CDTI fan control box and wiring.

And a correct description, I hope. I have been chewing at this now for some days and get more confused each time I look at it.

Anyway, ignore my last post re the 1/4" flag receptacles.

The old, i.e. the fan/contol box/wiring removed from the car, has three flag connectors present,

The grey wire is in the connection in between the yellow wire connection and the black wire connection that goes to the near relay, along with a brown/blue striped wire in the same crimp as the grey.

The new, i.e. the fan and control box and wiring that I am trying to fit has all four of the 1/4" connection occupied, with the grey going to the connector nearest the bigger relay.

The only difference I can see now is that the grey wire is not crimped in with the brow/blue striped wire on the "new" box I want to fit.

However, as the "new" fan etc., came off a newer car, I would have expected that to be the correct set up.

I am also not sure if the "old" set up I removed ever worked ok anyway, so I do not know if it was righ or not.

Anybody shed any light on this?

"New" fan, control box and wiring link

"Old" set up

frankgoldstar · 28th June 2017, 20:01

New CDTI wiring - I hope

https://www.facebook.com/photo.php?f...9970030&type=3

Old wiring

https://www.facebook.com/photo.php?f...9970030&type=3

tony062622 · 28th June 2017, 20:38

Quote:

Originally Posted by frankgoldstar

New CDTI wiring - I hope

https://www.facebook.com/photo.php?f...9970030&type=3

Old wiring

https://www.facebook.com/photo.php?f...9970030&type=3

Cant see pics mate

frankgoldstar · 28th June 2017, 21:37

Dear Tony,

I thought I had sorted this because when I click on the facebook links, the images come up.

I clicked on the links in the reply post from you, but they did not work.

As a senior member of the dinosaur brigade, I have no idea how to fix this.

I only read how to do it today and signed up, and my photo came through as confirmed by Simon.

I will try again.

Hopefully, if I can get a definitive graphical representation of the right wiring, it will be useful to other club forum members.

Best wishes, Frank

Arctic · 28th June 2017, 21:39

Quote:

Originally Posted by frankgoldstar

Dear All,

and this time the right version of the "new" CDTI fan control box and wiring.

And a correct description, I hope. I have been chewing at this now for some days and get more confused each time I look at it.

Anyway, ignore my last post re the 1/4" flag receptacles.

The old, i.e. the fan/contol box/wiring removed from the car, has three flag connectors present,

The grey wire is in the connection in between the yellow wire connection and the black wire connection that goes to the near relay, along with a brown/blue striped wire in the same crimp as the grey.

The new, i.e. the fan and control box and wiring that I am trying to fit has all four of the 1/4" connection occupied, with the grey going to the connector nearest the bigger relay.

The only difference I can see now is that the grey wire is not crimped in with the brow/blue striped wire on the "new" box I want to fit.

However, as the "new" fan etc., came off a newer car, I would have expected that to be the correct set up.

I am also not sure if the "old" set up I removed ever worked ok anyway, so I do not know if it was righ or not.

Anybody shed any light on this?

"New" fan, control box and wiring link

"Old" set up

HI Frank.
I am only just reading through this, so first am I right in saying that the original fan you have taken off the car had a silver resistor, if so did you first try a gold resistor replacement to see if it worked after changing the resistor.

Second did the fan you took of your look like this in the control box.

1

The new fan off the 06 CDti is the control box as this below .

2

Another thing to look at is all the wiring in the conduit right up to the plugs to see if any are corroded at the joins or at the plug end.

check the above and I am sure we will get there with help from Simon & the rest of us

SD1too · 28th June 2017, 22:22

Frank,

Your photograph in post number 7 shows your replacement system with the four connections, yes?

Why are the red and brown wires cut?

Simon

frankgoldstar · 28th June 2017, 22:29

Dear Arctic,

boy, am I glad you came to this party!

I have tried to correlate the photos you have posted on diesel fan replacement with the replacement fan I have.

I think it may simply be moving the grey wire in the "new" replacement control box to go in the same crimp as the brown/blue wire, but, to be honest, I have read that many postings and looked at that many pictures, I have disappeared up my own fundament.

Plus I had to learn how to post photos and images, some of which appear to have gone wrong.

In reply to your specific questions, please find below:

1. The fan I took off my car as being goosed, did have a silver resistor.

The 06 CDTI I took my intended replacement fan, control box and wiring from, also had a silver resistor.

This has been replaced by an RS gold resistor.

2. The control box on the fan I took off as a replacement, is exactly as you show in your second photo.

I have done a couple of drawings of the "new" control box and the one being replaced, hoping to post them, but I appear to have a spot of bother doing that.

Hopefully, you will be able to access those images and advise.

My brain hurts!

Best regards, Frank

Arctic · 28th June 2017, 22:37

Quote:

Originally Posted by frankgoldstar

Dear Arctic,

boy, am I glad you came to this party!

I have tried to correlate the photos you have posted on diesel fan replacement with the replacement fan I have.

I think it may simply be moving the grey wire in the "new" replacement control box to go in the same crimp as the brown/blue wire, but, to be honest, I have read that many postings and looked at that many pictures, I have disappeared up my own fundament.

Plus I had to learn how to post photos and images, some of which appear to have gone wrong.

In reply to your specific questions, please find below:

1. The fan I took off my car as being goosed, did have a silver resistor.

Quote:

The 06 CDTI I took my intended replacement fan, control box and wiring from, also had a silver resistor.

This has been replaced by an RS gold resistor.

2. The control box on the fan I took off as a replacement, is exactly as you show in your second photo

.

I have done a couple of drawings of the "new" control box and the one being replaced, hoping to post them, but I appear to have a spot of bother doing that.

Hopefully, you will be able to access those images and advise.

My brain hurts!

Best regards, Frank

Hi Frank.
The replacement you have and the gold resistor you have fitted to it should work when plugged in if not then either the PCB is at fault or a relay is not working.

Have any fuses been removed from the fuse box in the engine bay ?

frankgoldstar · 28th June 2017, 23:21

Dear Arctic,

no fuses have been removed and all were intact and passed 12.

Part of my confusion stemmed from the fact I had lots of 12v in the control box - and no idea what it all meant.

As a test, I intended to to try to energise the relays on the PCB to see if any were not working, but I was not sure what voltage they operated on.

As there is a PCB and PWM devices involved, I thought the relays might be 5v ish.

So I decided not to dab 12v on them to check. Are the relays 12v coils?

I also tried to reply to Simon (SD1too) but there was no post reply button I could find. Sorry.

However, it might be best for me to try to reply now in this post as he is probably (hopefully) watching posts:

Simon, the red and brown wires are not cut - it is just my bad image.

They actually join to other wires as shown in the diagrams I have hopefully managed to post.

I am very sorry that I am not able to do some of the basic things, like posting images that work, so please bear with me.

I much appreciate the time and effort you all put in to help a benighted poltroon like me try to breathe life back into my Rover.

Best wishes, frank

SD1too · 29th June 2017, 07:45

Frank,

The relay coils are 12 volts. Do you have a multimeter?

Simon

28th June 2017, 19:14	#11
frankgoldstar Avid contributor Rover 75 Conny Saloon Join Date: Sep 2009 Location: Manchester Posts: 144 Thanks: 16 Thanked 25 Times in 16 Posts	Fan and control box wiring Dear All, and this time the right version of the "new" CDTI fan control box and wiring. And a correct description, I hope. I have been chewing at this now for some days and get more confused each time I look at it. Anyway, ignore my last post re the 1/4" flag receptacles. The old, i.e. the fan/contol box/wiring removed from the car, has three flag connectors present, The grey wire is in the connection in between the yellow wire connection and the black wire connection that goes to the near relay, along with a brown/blue striped wire in the same crimp as the grey. The new, i.e. the fan and control box and wiring that I am trying to fit has all four of the 1/4" connection occupied, with the grey going to the connector nearest the bigger relay. The only difference I can see now is that the grey wire is not crimped in with the brow/blue striped wire on the "new" box I want to fit. However, as the "new" fan etc., came off a newer car, I would have expected that to be the correct set up. I am also not sure if the "old" set up I removed ever worked ok anyway, so I do not know if it was righ or not. Anybody shed any light on this? "New" fan, control box and wiring link "Old" set up

28th June 2017, 20:01	#12
frankgoldstar Avid contributor Rover 75 Conny Saloon Join Date: Sep 2009 Location: Manchester Posts: 144 Thanks: 16 Thanked 25 Times in 16 Posts	And hopefully the images New CDTI wiring - I hope https://www.facebook.com/photo.php?f...9970030&type=3 Old wiring https://www.facebook.com/photo.php?f...9970030&type=3

28th June 2017, 21:37	#14
frankgoldstar Avid contributor Rover 75 Conny Saloon Join Date: Sep 2009 Location: Manchester Posts: 144 Thanks: 16 Thanked 25 Times in 16 Posts	Missing pics Dear Tony, I thought I had sorted this because when I click on the facebook links, the images come up. I clicked on the links in the reply post from you, but they did not work. As a senior member of the dinosaur brigade, I have no idea how to fix this. I only read how to do it today and signed up, and my photo came through as confirmed by Simon. I will try again. Hopefully, if I can get a definitive graphical representation of the right wiring, it will be useful to other club forum members. Best wishes, Frank

28th June 2017, 22:22	#16
SD1too Doesn't do things by halves Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007 Location: Former Middlesex Posts: 20,344 Thanks: 1,587 Thanked 3,749 Times in 3,181 Posts	Frank, Your photograph in post number 7 shows your replacement system with the four connections, yes? Why are the red and brown wires cut? Simon __________________ "Whatever is rightly done, however humble, is noble." Sir Henry Royce. Last edited by SD1too; 28th June 2017 at 22:28..

28th June 2017, 22:29	#17
frankgoldstar Avid contributor Rover 75 Conny Saloon Join Date: Sep 2009 Location: Manchester Posts: 144 Thanks: 16 Thanked 25 Times in 16 Posts	Fan replacement wiring Dear Arctic, boy, am I glad you came to this party! I have tried to correlate the photos you have posted on diesel fan replacement with the replacement fan I have. I think it may simply be moving the grey wire in the "new" replacement control box to go in the same crimp as the brown/blue wire, but, to be honest, I have read that many postings and looked at that many pictures, I have disappeared up my own fundament. Plus I had to learn how to post photos and images, some of which appear to have gone wrong. In reply to your specific questions, please find below: 1. The fan I took off my car as being goosed, did have a silver resistor. The 06 CDTI I took my intended replacement fan, control box and wiring from, also had a silver resistor. This has been replaced by an RS gold resistor. 2. The control box on the fan I took off as a replacement, is exactly as you show in your second photo. I have done a couple of drawings of the "new" control box and the one being replaced, hoping to post them, but I appear to have a spot of bother doing that. Hopefully, you will be able to access those images and advise. My brain hurts! Best regards, Frank

28th June 2017, 23:21	#19
frankgoldstar Avid contributor Rover 75 Conny Saloon Join Date: Sep 2009 Location: Manchester Posts: 144 Thanks: 16 Thanked 25 Times in 16 Posts	Dear Arctic, no fuses have been removed and all were intact and passed 12. Part of my confusion stemmed from the fact I had lots of 12v in the control box - and no idea what it all meant. As a test, I intended to to try to energise the relays on the PCB to see if any were not working, but I was not sure what voltage they operated on. As there is a PCB and PWM devices involved, I thought the relays might be 5v ish. So I decided not to dab 12v on them to check. Are the relays 12v coils? I also tried to reply to Simon (SD1too) but there was no post reply button I could find. Sorry. However, it might be best for me to try to reply now in this post as he is probably (hopefully) watching posts: Simon, the red and brown wires are not cut - it is just my bad image. They actually join to other wires as shown in the diagrams I have hopefully managed to post. I am very sorry that I am not able to do some of the basic things, like posting images that work, so please bear with me. I much appreciate the time and effort you all put in to help a benighted poltroon like me try to breathe life back into my Rover. Best wishes, frank

29th June 2017, 07:45	#20
SD1too Doesn't do things by halves Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007 Location: Former Middlesex Posts: 20,344 Thanks: 1,587 Thanked 3,749 Times in 3,181 Posts	Frank, The relay coils are 12 volts. Do you have a multimeter? Simon __________________ "Whatever is rightly done, however humble, is noble." Sir Henry Royce.