D110 AC Repair - Defender Source
Defender Source  

Go Back   Defender Source > Defender & Series Technical Discussions > Defender Technical Discussions


Reply
 
Thread Tools
  #1  
Old June 1st, 2008, 09:19 AM
Lesandjes's Avatar
Lesandjes
Status: Offline
AndrewT
'93 NAS D110
Member
 
Join Date: Jun 2004
Location: NorthEast
Posts: 257
D110 AC Repair

Tring to get the stock AC going in the '93 NAS D110. Accoring to PO, it has not run in 7+ years and he never tried to fix it. Got the AB retrofit kit but the drier that came with it is not plug and play with the OEM one so I just tried using the stock one. I pulled the compressor as needed, filled with the new oil, installed new belt, replaced the other fittings and o-rings for R134, and went to work.

The compressor clutch is not kicking on when AC is engaged - its not getting power based on testing the connector. Condenser fans and blower motor are working fine. I can get the compressor on by hot-wiring it and it runs and I was able to fill some R134 and get some cold air to blow. Based on the circuit diagram, I think the pressure switches may need replacing. Any idea where they are? I assume they are in the black box up by the PS of the firewall in the engine bay.

All fuses were checked and the the relays seem to be working though need to dig there a little deeper also.

One other question since I am new to AC work - how do you know if/when a compressor is bad? When it ran (hot-wired) I got the system to charge and it blew some cold air but not very cold. I think I need a 101 on AC systems.

AndrewT
__________________
'93 NAS D110 #437
Reply With Quote
Sponsored Links
Advertisement
 
  #2  
Old June 1st, 2008, 10:59 PM
pendy's Avatar
pendy
Status: Offline
jim pendleton
89'd90
Member
 
Join Date: Oct 2003
Location: andover, ks usa
Posts: 2,341
I would be having new hoses made on that system if it sat that long.

JP
__________________
legend in my own mind

Advice is only as good as the person applying it--
Don't make me give you bad advice!

Lemons or lemonaide, whatever your taste provides.
Reply With Quote
  #3  
Old June 3rd, 2008, 06:42 PM
Lesandjes's Avatar
Lesandjes
Status: Offline
AndrewT
'93 NAS D110
Member
 
Join Date: Jun 2004
Location: NorthEast
Posts: 257
Yes - new hoses make sense.

No one knows where the pressure switches are?

AndrewT
__________________
'93 NAS D110 #437
Reply With Quote
Sponsored Links
Advertisement
 
  #4  
Old June 3rd, 2008, 06:58 PM
Stmpede's Avatar
Stmpede
Status: Offline
Andrew Najarian
'93 NAS D110 #43
Member
 
Join Date: Mar 2007
Location: Jacksonville, FL
Posts: 2,459
Also, I would get that new dryer in. If the system has been open and exposed to air for any time it will be bad. Also, my understanding is that it is best to replace it when converting even if the system has been maintained in the past. Sorry, no info on the pressure switches.
__________________
"I have taken more good from alcohol than alcohol has taken from me." - Winston Churchill
Reply With Quote
  #5  
Old June 5th, 2008, 12:55 PM
Lesandjes's Avatar
Lesandjes
Status: Offline
AndrewT
'93 NAS D110
Member
 
Join Date: Jun 2004
Location: NorthEast
Posts: 257
OK - the pressure switch harness is dangling near the drier after I found it there from tracing the wires. Odd thing is that the drier appears to be original yet there is no pressure switch on it at all. I can jumper the pressure switch connector and then AC compressor engages as it should - so that problem is solved. Now I need to figure out the pressure switch issue. Get this - LR stealership says new pressure switch is $350 (for the switch alone). They want another $450 for the drier with the harness. Completely ridiculous.

I guess I need to fab up something to use the aftermkt drier I got from AB and also figure out a pressure switch option (or just bypass it altogether).

AndrewT
__________________
'93 NAS D110 #437
Reply With Quote
Reply

Lower Navigation
Go Back   Defender Source > Defender & Series Technical Discussions > Defender Technical Discussions

Tags
110, ac, d110

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
'93 NAS D110 AC Condenser Fan Jon_Winningham Wanted 19 January 17th, 2015 11:49 AM
D110 300Tdi Rear AC unit - NEW artm For Sale - Parts 36 December 18th, 2008 09:09 AM
Project D110 hi-cap Shane@EVS Misc. Chit-Chat 9 February 26th, 2006 10:05 PM
D110 300Tdi AC Compressor? Hssser Defender Technical Discussions 3 August 17th, 2005 07:47 PM
AC in D110 TDi artm Defender Technical Discussions 2 May 13th, 2004 07:18 PM


All times are GMT -5. The time now is 01:35 AM.


Copyright