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85' EA82T air con fan running when ignition switched to acc. and on?
Posted 08 June 2012 - 10:25 PM
Anyone have any idea what might be causing this?
Posted 08 June 2012 - 10:40 PM
So, I Kindly suggest you to check all those electrical connections on the A/C Line and Fix them in Place if one (or More) became loose; then try the Ignition Switch again.
Posted 08 June 2012 - 10:56 PM
Posted 08 June 2012 - 11:21 PM
Look Behind the Headlamp, a Little bit down; you'll Notice two Pressure Switches in that Line, The Big one is to avoid the A/C Compressor to Spin on Low Gas Pressure, and the Smaller one is to turn on / off the A/C Fan on EARLY EA82 models only.
Newer EA82's has the A/C Fan activated by the Relays that are under the Windshield's base at the Engine Bay... in Fact: Subaru sold a Rewiring kit (a couple of Male / Female connectors to place between the Stock Relays and the Stock Plugs) to make the Earlier (1985 / 1986) EA82 Models to activate the A/C Fan with the Relay Signal, Bypassing that in-line Pressure Switch.
Posted 08 June 2012 - 11:40 PM
Posted 08 June 2012 - 11:55 PM
I can't see the actual pressure switches on the line though, only the connectors. Anyone have a photo/diagram of where they are?
Posted 09 June 2012 - 12:12 AM
ALSO: if the Thermoswitch's line is disconnected and the Plug touches bare Metal, the Fan will stay on with ignition too.
The Thermoswitch is the one attached to the Radiator, it could have two different connection Designs: Twin Spades on the Thermoswitch itself or a Pig tail wire with connector on the End.
Look ~► Here for Mo' info.
Posted 09 June 2012 - 12:31 AM
Posted 09 June 2012 - 01:07 AM
My Wagons are Left Hand Drive, so the A/C Line is Behind the Left Headlamp (Passenger's side here in America, Looking from the Front of the Car) on them, but here goes a Hint: The Pressure Switches are in the Line that Goes to the A/C Filter, that must be the Other Line.
(there are Two Lines, one is Low Pressure and the other one is High Pressure)
Look for the A/C Filter: its Shaped like a Dark Bottle with a Hole in the Top, which really is a "Glass "Window" that allows to watch for Bubbles on the A/C Gas + Oil Mixture.
Have you already checked for a Loose Thermoswitch wires Connector? ... Because it could be the Culprit too, as I Explained above.
Posted 09 June 2012 - 01:38 AM
I Hope this can Help.
Posted 09 June 2012 - 02:00 AM
Can't find this glass viewing filter though. Heres a picture of my engine bay I took a while back - can you point me to it on there?
The AC line with the red cap on it is the one that goes to the radiator dealie in front of the radiator - the other one seems to go back into the firewall.
Posted 09 June 2012 - 10:07 AM
Yeah, I think I might be due for a new thermoswitch, just took a look at it and someones put rubbish crimp terminals on it. Looks dodgy. ...
Well, if both Terminals have a Short Circuit, there is the Culprit for the A/C Fan to Stay On.
...Can't find this glass viewing filter though. Heres a picture of my engine bay I took a while back - can you point me to it on there? ...
Yes, but I'll Need a Wider Picture to Look at the inner Fenders, because your Subaru is Right Hand Drive and Mine is Left Hand Drive, so the Placement Might Differ.
So, in order to Properly Help you to Locate those Switches, Please Upload a Picture of the Complete Engine Bay.
...The AC line with the red cap on it is the one that goes to the radiator dealie in front of the radiator - the other one seems to go back into the firewall.
Very Kindly Let me Tell you that you're Followin' the A/C Lines that goes to the Compressor, while I Wrote that you must search for the Pressure Switches on the...
...Lines that Goes and Comes from the Condenser...
Look Behind the Headlamp, a Little bit down; you'll Notice two Pressure Switches in that Line...
So, Look at the Lines that goes to the CONDENSER, which Looks like another radiator and is placed in Front of the Radiator that you removed for Cleansing.
Look to my Previous Post, it has a Picture.
Edited by Loyale 2.7 Turbo, 09 June 2012 - 10:17 AM.
Mispelled Word, Fixed.
Posted 10 June 2012 - 01:21 AM
...Heres a picture of my engine bay I took a while back - can you point me to it on there? ...
...Yes, but I'll Need a Wider Picture to Look at the inner Fenders, because your Subaru is Right Hand Drive and Mine is Left Hand Drive, so the Placement Might Differ...
Placement is Different between RHD & LHD Subarus of the Same Model.
I searched on my PC's collection of Photos and Look what I've Found about the A/C Filter Placement:
(No one of this Photos belongs to my Subies, they are Downloaded from Internet)
Left Hand Drive, like my Subies:
Right Hand Drive, Like Yours:
Now I Understand why you haven't located the Switch...
On the Left hand Drive Subarus, the Switch is near the A/C Filter, as you can see in my Subie's Photo:
Maybe you can find it on your Subie, following the Lines that Comes & Goes from the A/C Filter.
Posted 10 June 2012 - 02:03 PM
Defrost setting will run the compressor and the fan.
you could just pull the AC fan relay. Sounds like you may want to keep working ac though?
Posted 11 June 2012 - 06:13 AM
Posted 11 June 2012 - 09:20 AM
Dumb question, but is the defrost on? ...
That is Not a Dumb Question, Usually we forget about the Basics, so its a Good Question.
The Thermoswitch is a Good point too, I've already stated that:
...ALSO: if the Thermoswitch's line is disconnected and the Plug touches bare Metal, the Fan will stay on with ignition too...
So, we'll Like to know if you Already Solved the Problem or Not.
Posted 12 June 2012 - 08:55 PM
Posted 13 June 2012 - 05:53 AM
Then again, looking over at the filter, there is some wiring with two wires coming off it. Looks like earths or something, but could be to do with the old air-suspension setup (which has been replaced with conventional springs).
Posted 22 June 2012 - 11:11 PM
Any Progress? ... Did you changed the ThermoSwitch?
Posted 23 June 2012 - 10:49 PM
Posted 14 November 2012 - 04:32 PM
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