Go Back   Australian Ford Forums > Club and Speciality Forums > Forum Community Car Clubs > AU Falcon.com.au

Reply
 
Thread Tools Display Modes
Old 23-01-2014, 03:24 PM   #1
james22
With da Warlords
 
james22's Avatar
 
Join Date: May 2006
Location: Orange NSW
Posts: 1,781
Default A/C Relay.. Purpose?

Hi All

Recently the compressor on my A/C started clicking on and off every few seconds. I pulled the A/C relay out from fuse box near battery and noticed that now the compressor works fine? I replaced the relay with a new one and have the same problem?

What's the point of that relay if A/C works fine without it?

Cheers

__________________
You don't have to be faster than the bear, you just have to be faster than the slowest guy running from the bear.

For Sale: Parachute. Only used once, never opened, small stain.

Windsor Warlords
AU III XR-8220
300+ rwhp of Manual fun

XR50T Ute - 300rwkw (give or take depending on the day)
james22 is offline   Reply With Quote Multi-Quote with this Post
Old 23-01-2014, 05:00 PM   #2
EA2BA
PM me if you want
 
EA2BA's Avatar
 
Join Date: Dec 2004
Location: Pk Ranger Modding - QLD 👍
Posts: 7,498
Default Re: A/C Relay.. Purpose?

I would guess the fail safe mode is ON for safety so you can demist your window.

The relay I would guess is being used by the climate control or something to turn it off at a certain temp hence a I would say a faulty sensor is to blame.
__________________
Owner of first ever car to retrofit BA SSS - the EA2BA

Send me a PM if you want to know anything

2010 Ford Ranger PK High Rider (Auto) - 2011 Ford Fiesta (Auto)
EA2BA is offline   Reply With Quote Multi-Quote with this Post
Old 23-01-2014, 05:10 PM   #3
xxx000
FF.Com.Au Hardcore
 
Join Date: Aug 2007
Posts: 1,874
Default Re: A/C Relay.. Purpose?

compressor cutting in and out quickly usually means low gas

sorry can't answer the other part of your question but post #2 makes sense
xxx000 is offline   Reply With Quote Multi-Quote with this Post
Old 23-01-2014, 07:21 PM   #4
Davehoos
FF.Com.Au Hardcore
 
Join Date: Sep 2013
Location: Karuah Valley
Posts: 984
Default Re: A/C Relay.. Purpose?

the compressor relay is to operate the clutch.

the A/C relay is to operate the fan-climate control systems.

I only had this occure with climate control and faulty fanspeed controller.
__________________
BF11 XT EGas Wagon-SY TERRITORY AWD GHIA-
Land Rover 88
.MIDCOAST NSW.
Davehoos is offline   Reply With Quote Multi-Quote with this Post
Old 23-01-2014, 11:54 PM   #5
james22
With da Warlords
 
james22's Avatar
 
Join Date: May 2006
Location: Orange NSW
Posts: 1,781
Default Re: A/C Relay.. Purpose?

Thanks for the replies.

The gas has been replaced so I can rule that out. Its a AU3 XR8, so no climate control.
So what does the A/C relay underbonnet actually do? Does it tell thermofans to run at high speed and the cut A/C compressor out at WOT?
__________________
You don't have to be faster than the bear, you just have to be faster than the slowest guy running from the bear.

For Sale: Parachute. Only used once, never opened, small stain.

Windsor Warlords
AU III XR-8220
300+ rwhp of Manual fun

XR50T Ute - 300rwkw (give or take depending on the day)
james22 is offline   Reply With Quote Multi-Quote with this Post
Old 25-01-2014, 05:18 AM   #6
james22
With da Warlords
 
james22's Avatar
 
Join Date: May 2006
Location: Orange NSW
Posts: 1,781
Default Re: A/C Relay.. Purpose?

Nevermind.... Just destroyed another gearbox.. Too much ******* torque... Thanks for the replies
__________________
You don't have to be faster than the bear, you just have to be faster than the slowest guy running from the bear.

For Sale: Parachute. Only used once, never opened, small stain.

Windsor Warlords
AU III XR-8220
300+ rwhp of Manual fun

XR50T Ute - 300rwkw (give or take depending on the day)
james22 is offline   Reply With Quote Multi-Quote with this Post
Reply


Forum Jump


All times are GMT +11. The time now is 01:24 AM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Other than what is legally copyrighted by the respective owners, this site is copyright www.fordforums.com.au
Positive SSL