air con fuse 9

HAZE_75 · 25th September 2008, 19:11

can anybody tell me if the underbonnet fuse f9 controlls anything else other than the ac compressor clutch. I had a new compressor fitted a month ago and now the air con does not work because fuse f9 is constantly blowing as soon as the ac is called. does anybody have any circuit drawings?
ta

T-Cut · 25th September 2008, 20:13

Under bonnet Fuse 9 (10 amps) protects the aircon system only.

stocktake · 25th September 2008, 20:26

Trapped or chaffed wire to compressor?

JohnDotCom · 25th September 2008, 21:09

Faulty new Compressor or no Gas?

T-Cut · 25th September 2008, 21:28

Quote:

Originally Posted by HAZE_75

I had a new compressor fitted a month ago and now the air con does not work - - -

Warranty?

TC

SMC Trading · 25th September 2008, 22:35

Quote:

Originally Posted by T-Cut

Warranty?

TC

It is indeed covered by our warranty but must first rule out all other possibilities, it is very rare for a brand new unit to fail so soon.

JohnDotCom · 25th September 2008, 23:07

If there is a leak anywhere in the System and levels drop below a certain point,
I'm sure the Fuse blows at or before that point if A/C is operated.

May be Installation fault rather than faulty Component?
Also check pipes for rubbing, easily wears a hole in Air Con system pipes.

The_Monk · 26th September 2008, 07:58

I had my aircon recharged at kwik fit. They attach two pipes to this machine which empties, pressure checks, and refils. Might be worth have them do it to test for leaks...

Not sure what the opinion of them on the site is but my a/c has been great since and they took the temperature and it got to 4.8 and was still dropping but I said that was fine.

stocktake · 26th September 2008, 17:07

It is a single wire that feeds the aircon pump. if this is disconnected just by the pump (not east to get to) then you will know if it is the wire or the pump it's self.

Simply disconnect and fit new fuse, if it still blows it will be and earth fault on the wire, if not it will probably be the pump

As far as I know lack pressure in the air con, it simply will not run, not cause the fuse to blow, mine was discharged when purchased but I have never changed the fuse.

HTH

JohnDotCom · 26th September 2008, 17:09

Thanks for clarification Stocktake.
Advice from a previous post, now updated my notes, thanks.

25th September 2008, 19:11	#1
HAZE_75 Regular poster Rover75 conn 2.5 auto saloon Join Date: Feb 2008 Location: Swindon, Wilts Posts: 47 Thanks: 0 Thanked 0 Times in 0 Posts	air con fuse 9 can anybody tell me if the underbonnet fuse f9 controlls anything else other than the ac compressor clutch. I had a new compressor fitted a month ago and now the air con does not work because fuse f9 is constantly blowing as soon as the ac is called. does anybody have any circuit drawings? ta

25th September 2008, 20:26	#3
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	Trapped or chaffed wire to compressor? __________________ Dave... Lost a few stones and a Gall Bladder and part of a bile duct and all of my dignity in the suppository incident

26th September 2008, 17:07	#9
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	It is a single wire that feeds the aircon pump. if this is disconnected just by the pump (not east to get to) then you will know if it is the wire or the pump it's self. Simply disconnect and fit new fuse, if it still blows it will be and earth fault on the wire, if not it will probably be the pump As far as I know lack pressure in the air con, it simply will not run, not cause the fuse to blow, mine was discharged when purchased but I have never changed the fuse. HTH __________________ Dave... Lost a few stones and a Gall Bladder and part of a bile duct and all of my dignity in the suppository incident

25th September 2008, 20:13	#2
T-Cut This is my second home Rover75 and Mreg Corsa. Join Date: Nov 2006 Location: Sumweer onat mote o'dust (Sagin) Posts: 21,753 Thanks: 341 Thanked 3,660 Times in 2,924 Posts	Under bonnet Fuse 9 (10 amps) protects the aircon system only.

25th September 2008, 21:09	#4
JohnDotCom * Rover 75 FaceLift Tourer CDTi 170BHP Auto ConnSE 2005 Model Starlight Silver Join Date: Nov 2006 Location: Abergele Posts: 28,735 Thanks: 0 Thanked 6 Times in 5 Posts	Faulty new Compressor or no Gas?

25th September 2008, 23:07	#7
JohnDotCom * Rover 75 FaceLift Tourer CDTi 170BHP Auto ConnSE 2005 Model Starlight Silver Join Date: Nov 2006 Location: Abergele Posts: 28,735 Thanks: 0 Thanked 6 Times in 5 Posts	If there is a leak anywhere in the System and levels drop below a certain point, I'm sure the Fuse blows at or before that point if A/C is operated. May be Installation fault rather than faulty Component? Also check pipes for rubbing, easily wears a hole in Air Con system pipes.

26th September 2008, 07:58	#8
The_Monk I really should get out more....... - Join Date: Nov 2006 Location: - Posts: 2,586 Thanks: 0 Thanked 3 Times in 2 Posts	I had my aircon recharged at kwik fit. They attach two pipes to this machine which empties, pressure checks, and refils. Might be worth have them do it to test for leaks... Not sure what the opinion of them on the site is but my a/c has been great since and they took the temperature and it got to 4.8 and was still dropping but I said that was fine.

26th September 2008, 17:09	#10
JohnDotCom * Rover 75 FaceLift Tourer CDTi 170BHP Auto ConnSE 2005 Model Starlight Silver Join Date: Nov 2006 Location: Abergele Posts: 28,735 Thanks: 0 Thanked 6 Times in 5 Posts	Thanks for clarification Stocktake. Advice from a previous post, now updated my notes, thanks.