AC not working

Tiny
CARGUY598
  • 1999 HONDA CRV
  • 150,000 MILES

I have recharged my air, tested pressure switch on drier, checked relay and a/c won't work. If I apply power at compressor pigtail it will engage.

Do you
have the same problem?
Yes
No
Saturday, June 30th, 2012 AT 1:07 AM

13 Replies

Tiny
ASEMASTER6371
  • EXPERT
  • 25,499 POSTS

No, it is a separate system. Have the freon pressures checked.

Roy

Roy

Was this
answer
helpful?
Yes
No
Saturday, June 30th, 2012 AT 1:11 AM
Tiny
CARGUY598
  • MEMBER

I personally charged to proper level of freon and compressor will not engage.

Was this
answer
helpful?
Yes
No
Saturday, June 30th, 2012 AT 1:15 AM
Tiny
ASEMASTER6371
  • EXPERT
  • 25,499 POSTS

How much did you install? What were the pressures when you jump the compressor?

Roy

Was this
answer
helpful?
Yes
No
Saturday, June 30th, 2012 AT 1:38 AM
Tiny
CARGUY598
  • MEMBER

Evacuated system, vac for 35 mins, added 24oz, spec is 22 to 24.7. Pressures were 35 low, didnt have high side guage hooked up though

Was this
answer
helpful?
Yes
No
Saturday, June 30th, 2012 AT 2:30 AM
Tiny
CARGUY598
  • MEMBER

It appears that when the switch is turned on, there is not power going to compressor, continuity between relay box and compressor is good, fuse is good.

Was this
answer
helpful?
Yes
No
Saturday, June 30th, 2012 AT 3:02 AM
Tiny
MIKEDEROUIN88
  • MEMBER

Have you tried to bypass the clutch cycle switch?

Was this
answer
helpful?
Yes
No
Saturday, June 30th, 2012 AT 4:12 AM
Tiny
CARGUY598
  • MEMBER

I did bypass the cycle switch. Still made no difference.

Was this
answer
helpful?
Yes
No
Saturday, June 30th, 2012 AT 9:33 PM
Tiny
CARGUY598
  • MEMBER

It appears that after further diagnostics, there is a self diagnostics through the control head, if there are any codes it will tell the pcm not to engage compressor. I ran self diagnosticcs and it had blower speed fault. Went through testing and found out that resistor is causing blower speed fault. Will have the part in 3 days, will update when part comes in if that resolved my issue. Thank you to all who responded and tried to help me through this.

Was this
answer
helpful?
Yes
No
Saturday, June 30th, 2012 AT 10:03 PM
Tiny
CARGUY598
  • MEMBER

UPDATE ON REPAIRS: I replaced blower motor resistor, went through self diagnostics again as directed by trouble shooter. Started vehicle and turned on air. Works great! 31 degree drop at center vent!

Was this
answer
helpful?
Yes
No
+2
Friday, July 6th, 2012 AT 1:48 AM
Tiny
MARIOS CORTES
  • MEMBER

Hey Carguy598,

I'm having the same issue I just ordered by a resistor. My mechanic mentioned the resistor won't cause my compressor not to come on because it's a separate unit but I have my doubts and with your post, I'm almost sure it's the same issue. Fingers crossed I'll keep you guys posted. Thanks for the info!

Was this
answer
helpful?
Yes
No
Monday, June 26th, 2017 AT 11:20 AM
Tiny
2CARPROS KEN
  • ADMIN
  • 10,306 POSTS

Please let us know what happens, we are interested to see what it is.

Cheers, Ken

Was this
answer
helpful?
Yes
No
+1
Wednesday, June 28th, 2017 AT 5:45 PM
Tiny
MARIOS CORTES
  • MEMBER

So I have great news which I will list below to make it easier to understand for whoever else reads this.

Vehicle:
1999 Honda Crv with 210k
Automatic

Issues:
1 - Blower motor only would turn on when climate controller was set to high (Bad resistor)
2 - AC compressor wouldn't turn on even if climate control was running on high (AC was fully charged, AC compressor was manually tested and it turned on.

Attempt to fix AC Compressor turning on:
1 - Checked all fuses and relay (All were good)
2 - AC system was emptied and refilled with new freo. (No leaks)

Solution:
1 - Replaced resistor (It fixed both issues of AC compressor not turning on and climate control fan speed)

Thanks Again,

Mario

Was this
answer
helpful?
Yes
No
Thursday, June 29th, 2017 AT 6:48 AM
Tiny
2CARPROS KEN
  • ADMIN
  • 10,306 POSTS

Glad you could get it fixed, that kind of problem can be tough. Please use 2CarPros anytime we are here to help

Cheers, Ken

Was this
answer
helpful?
Yes
No
Thursday, June 29th, 2017 AT 10:50 AM

Please login or register to post a reply.

Recommended Guides