Sr20det A/C compressor won't kick on with console switch. - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

neo_rambo · 02-01-2008, 09:03 AM

I had the a/c working for 3 years in a 91 hatch with an sr20det. Just recently I noticed that the compressor isn't kicking on with the interior control unit when I hit the A/C switch the green light doesn't come one but thats common with those consoles for the lights to go out on them. I check the fuse inside and that was good. I tested the relay with another relay that I know works. Still didn't kick in. I took the relay out and bypassed it with a wire and the compressor kicked in. Has anyone had this problem? What do you guys think it is? A/C Control unit the problem? Low pressure switch? Are there any other tests that I can do? Thanks in advance.

projectRDM · 02-01-2008, 02:25 PM

Pressure switch, you're low on refrigerant more than likely. The compressor does not engage if it's low.

neo_rambo · 02-01-2008, 05:54 PM

thanks man I will refill it and hopefully it will fix the problem.

02-01-2008, 09:03 AM	#1
neo_rambo Leaky Injector Join Date: Apr 2002 Location: Dallas/Ft Worth Posts: 121 Trader Rating: (0) Feedback Score: 0 reviews	Sr20det A/C compressor won't kick on with console switch. I had the a/c working for 3 years in a 91 hatch with an sr20det. Just recently I noticed that the compressor isn't kicking on with the interior control unit when I hit the A/C switch the green light doesn't come one but thats common with those consoles for the lights to go out on them. I check the fuse inside and that was good. I tested the relay with another relay that I know works. Still didn't kick in. I took the relay out and bypassed it with a wire and the compressor kicked in. Has anyone had this problem? What do you guys think it is? A/C Control unit the problem? Low pressure switch? Are there any other tests that I can do? Thanks in advance.

02-01-2008, 02:25 PM	#2
projectRDM Post Whore! Join Date: Dec 2002 Location: Atlanta Age: 51 Posts: 13,812 Trader Rating: (12) Feedback Score: 12 reviews	Pressure switch, you're low on refrigerant more than likely. The compressor does not engage if it's low. __________________ FORMERLY R240NA Learn what's really going on and protect your assets now before they're gone forever: www.paypalsucks.com

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02-01-2008, 05:54 PM	#3
neo_rambo Leaky Injector Join Date: Apr 2002 Location: Dallas/Ft Worth Posts: 121 Trader Rating: (0) Feedback Score: 0 reviews	thanks man I will refill it and hopefully it will fix the problem.