2000 Infiniti I30 constant A/C

Tiny
OREGON8116
  • MEMBER
  • 2000 INFINITI I30
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 101,000 MILES
Recently, my climate control system only produces air conditioning. Example: outside temp is 55, I set the thermostat on the dash (AUTO setting) at 75. After a half hour of driving, still getting air conditioning. Set to the ECON setting, I get ambient temperature. If I crank it up to 82 on AUTO, I'll get warm air for a few moments, then back to A/C. Called the local dealer, he said it sounds like $750 plus to fix it. Any suggestions on what it might be and possible lower cost solutions?
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Thursday, September 2nd, 2010 AT 11:58 AM

5 Replies

Tiny
DOCFIXIT
  • EXPERT
Hi
Run the self diagostnic tests key on press hold AC off button for at least 5 sec. See on screen go into self-diagnostic test 1. There are 5 tests move between tests by rotating TEMP knob. Record any findings and post will advise.
Thanks for donate
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Friday, September 3rd, 2010 AT 11:45 AM
Tiny
OREGON8116
  • MEMBER
Tried and didn't work. Let me see if I get it right. Question: First, should ignition be on or engine idling when doing the diagnostic? Second - push "OFF" button for 5 or more seconds - then screen should come alive with tests? Let me know if this is correct and I'll try again and send responses. Thanks for your help.
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Tuesday, September 7th, 2010 AT 1:15 PM
Tiny
DOCFIXIT
  • EXPERT
Key on or car running either way and yes hold AC off screen will go to test. Rotate TEMP knob to go from 1-5 tests
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Tuesday, September 7th, 2010 AT 2:14 PM
Tiny
OREGON8116
  • MEMBER
I ran the test as you suggested. Here are results.

Hold off button down until screen shows a message

Message: AUTOECON -188.8 C AMB

Turned temp dial to 2

Message: number 2 shows, there is some whirring noise, then the number 5 shows next to 2

Turned temp dial to 3

Message: the number 3 shows, there is whirring sound, after about 45 seconds the number O shows next to 3.

Turned temp dial to 4
Message: the number 41 shows along with a blowing sound

Turned dial to 5

message: the number 51 with no sound
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Friday, September 10th, 2010 AT 1:25 PM
Tiny
DOCFIXIT
  • EXPERT
Suspect A/C Auto Amplifier if compressor and fan on all the time they are controler by amplifer. Test 2 and 3 gave incorrect results while 4 - 5 where good. Dealer part and lots of $$$ maybe get one for salvage?
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Tuesday, September 14th, 2010 AT 3:28 PM

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