rad fan

Susanne · 19th July 2008, 14:43

Should the fan come on when you turn on the ignition on rover 75 diesel connoisuer se 2001, thankyou for those who replied to ealier questions, Sue.

stocktake · 19th July 2008, 14:46

Yes, if the air con is on

SD1too · 19th July 2008, 23:00

Quote:

Originally Posted by Susanne

Should the fan come on when you turn on the ignition on Rover 75 diesel connoisseur SE 2001...

Sue,

As Stocktake says, the fan should run whenever the air conditioning is activated. If you don't have a.c., or if it's switched off, then the fan shouldn't run provided that the engine is not already at a high temperature due to recent use.

Simon.

Susanne · 31st July 2008, 15:22

The fan starts when i turn on the ignition and runs for about 7-8secs after ign is turn off with cold engine it is a 3 speed fan. Sue.

Christopher · 31st July 2008, 15:41

Quote:

Originally Posted by Susanne

The fan starts when i turn on the ignition and runs for about 7-8secs after ign is turn off with cold engine it is a 3 speed fan. Sue.

Can you confirm if you have aircon and if it is on at the time though?

Jules · 31st July 2008, 16:06

Or in other words Susanne, press ECON, then fan shouldn't come on then!
If you car has done more than 50k miles think about replacing the fan motor if it's the original.

Lots on here about the subject

Moonstone · 31st July 2008, 17:23

The OP may not be aware that the Auto Climate Control - and so the fan - will come on at ignition if it was left on the last time ignition was turned off - i.e. it remembers the last state it was in.

Try switching CC off before removing the key. The fan should stop with a cold engine. Re-start and see if the fan stays off.

Susanne · 1st August 2008, 14:16

Hi, when i put the key in the ign and turn it on the fan starts, when i turn the ign off it stops after 7-8 secs this is with a cold engine and the air con off, if i start the engine the fan runs all the time the engine is running and stops when i stop the engine after a short time, there is no coolant in the air con system as i had the rad off and have not yet had it recharged, will this affect the fan? the fan i had on the car fell apart so i put a replacement fan complete that i got from Rover spares in Hull the same as the old one ie: a four wire one, it is driving me crackers, i can take the front off, rads and fan put it back now as fast as anyone, help!

GreyGhost · 1st August 2008, 14:31

I believe the A/C has to be charged for correct operation of the cooling fan.

Jules · 1st August 2008, 15:05

Ah well the problem with a second hand one is that you are dealing with an unknown quantity.

Sounds like one of the relays is sticking in the fan relay control box.
The fan cowling assembly can be removed without degassing the AC had you been able to read this thread fisrt !:

http://www.the75andztclub.co.uk/foru...ead.php?t=4789

Hope you get it sorted

19th July 2008, 14:43	#1
Susanne Newbie Rover 75 Connoiseur SE diesel Join Date: Jul 2008 Posts: 4 Thanks: 0 Thanked 0 Times in 0 Posts	rad fan Should the fan come on when you turn on the ignition on rover 75 diesel connoisuer se 2001, thankyou for those who replied to ealier questions, Sue.

19th July 2008, 14:46	#2
stocktake Vis Whiz Rover 75 2.5 auto Saloon Join Date: Jun 2007 Location: LEEDS Posts: 20,591 Thanks: 2,057 Thanked 3,056 Times in 1,621 Posts	Yes, if the air con is on __________________ Dave... Lost a few stones and a Gall Bladder and part of a bile duct and all of my dignity in the suppository incident

31st July 2008, 15:22	#4
Susanne Newbie Rover 75 Connoiseur SE diesel Join Date: Jul 2008 Posts: 4 Thanks: 0 Thanked 0 Times in 0 Posts	rad fan The fan starts when i turn on the ignition and runs for about 7-8secs after ign is turn off with cold engine it is a 3 speed fan. Sue.

31st July 2008, 16:06	#6
Jules This is my second home ZT 260 SE Twilight and 10 other 75 ZT's :O Join Date: Jan 2007 Location: Conwy NORTH WALES Posts: 11,094 Thanks: 512 Thanked 1,116 Times in 763 Posts	Or in other words Susanne, press ECON, then fan shouldn't come on then! If you car has done more than 50k miles think about replacing the fan motor if it's the original. Lots on here about the subject __________________ [SIGPIC][/SIGPIC] Newbies do now!! 1. Plenum drains..all 3 or 4 year dependent 2. Cooling fan..All speeds functioning 3. Bonnet cable divider block

1st August 2008, 14:16	#8
Susanne Newbie Rover 75 Connoiseur SE diesel Join Date: Jul 2008 Posts: 4 Thanks: 0 Thanked 0 Times in 0 Posts	rad fan Hi, when i put the key in the ign and turn it on the fan starts, when i turn the ign off it stops after 7-8 secs this is with a cold engine and the air con off, if i start the engine the fan runs all the time the engine is running and stops when i stop the engine after a short time, there is no coolant in the air con system as i had the rad off and have not yet had it recharged, will this affect the fan? the fan i had on the car fell apart so i put a replacement fan complete that i got from Rover spares in Hull the same as the old one ie: a four wire one, it is driving me crackers, i can take the front off, rads and fan put it back now as fast as anyone, help!

31st July 2008, 17:23	#7
Moonstone Loves to post Rover 75 Tourer Join Date: Nov 2006 Location: Scotland Posts: 412 Thanks: 0 Thanked 1 Time in 1 Post	The OP may not be aware that the Auto Climate Control - and so the fan - will come on at ignition if it was left on the last time ignition was turned off - i.e. it remembers the last state it was in. Try switching CC off before removing the key. The fan should stop with a cold engine. Re-start and see if the fan stays off.

1st August 2008, 14:31	#9
GreyGhost Banned 180+ Sport Auto Join Date: Oct 2006 Location: Bedford Middle Level Posts: 17,787 Thanks: 0 Thanked 18 Times in 5 Posts	I believe the A/C has to be charged for correct operation of the cooling fan.

1st August 2008, 15:05	#10
Jules This is my second home ZT 260 SE Twilight and 10 other 75 ZT's :O Join Date: Jan 2007 Location: Conwy NORTH WALES Posts: 11,094 Thanks: 512 Thanked 1,116 Times in 763 Posts	Ah well the problem with a second hand one is that you are dealing with an unknown quantity. Sounds like one of the relays is sticking in the fan relay control box. The fan cowling assembly can be removed without degassing the AC had you been able to read this thread fisrt !: http://www.the75andztclub.co.uk/foru...ead.php?t=4789 Hope you get it sorted __________________ [SIGPIC][/SIGPIC] Newbies do now!! 1. Plenum drains..all 3 or 4 year dependent 2. Cooling fan..All speeds functioning 3. Bonnet cable divider block