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Lfx25976sw Compressor runs no cooling freon pressure is correct 49 psi

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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  • 335 Answers

SOURCE: AC not cool

Check the a/c lines entering the firewall. Large hose should be cold and small line warm-hot.If o/k, may have vacumm leak to underdash control. If vacumm is lost the system will revert to heat and defrost. Could also be the air blend door is stuck. Maybe something dropped down defrost vent on dash. If this helps Please rate

Posted on May 01, 2009

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  • 84 Answers

SOURCE: 2002 Saturn not cooling

well you cant just put refrigerant into a system. 1st you had a broken line . so the compressor probally pumped all its oil out and you lost the gas. 2 after such an incident you have to have the system evacuated to remove all the air out of the lines and system. if there is any air or moisture in there it will not run right due to freezing and without oil in there you will destry your pump . i suggest that you take it to a garage and get it evacuated be fore you proceed. then you can refill it. also on your vechile it should tell you how much goes in there like 1lb 6oz and there is an amount written on the can so go by that. putting more in there will do more harm then good and cause alot of headaches and sweating. good luck have a good day

Posted on May 06, 2009

roniecon
  • 6826 Answers

SOURCE: AC has freon (134a) pressure is good. Compressor

Have a code reader or scanner put on the car to erase all codes,this should reset the ac system circuit.Also check the low side clutch cycle switch,it may be the problem.

Posted on May 01, 2010

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  • 630 Answers

SOURCE: AC problem with 2001 Montana passenger van

Did you replace the expansion valve?
Also try adding just a little more freon and see if that makes a difference....is there a sight glass you can view with the system activated to be sure you have it completely air free?

Posted on Jul 21, 2010

pctech1
  • 1940 Answers

SOURCE: 2004 Altima won't cool.

You do have the compressor On while you are charging the system, right? Since you have 30 psi with the compressor off, and 0 psi with the compressor On, this tells us your compressor is working, and you are nowhere near charged. Keep filling, until your low side gauge indicates full/normal charge. Do NOT overfill, it won't get cooler. It would get warmer and it will eventually damage the compressor. If your system was evacuated, you may need anywhere from 3-5 cans of Freon to fill the system, depending on the size of the cans. If your lines are freezing, there may be a restriction. I hope you got all the moisture out before charging, by pulling a strong vacuum in the system. I also hope you didn't release any old freon into the air.

If you are not EPA MVAC Certified, and a standard recharge isn't fixing the problem, I recommend you get an EPA MVAC certified technician to fix your A/C.

Also keep in mind that the only accurate way to charge an auto a/c system is to safely and legally recover and evacuate all the existing gas from the system, then hopefully after a successful leak repair, carefully weigh-in an the exact amount listed on the a/c factory specification label placed under the hood by the factory to assist the service technician, which, again may leak-out if the needed repair is not performed properly.

Posted on Mar 19, 2011

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1 Answer

1989 s 10 blazer won't take freon has 55 psi on low side while filling with comp. On only 20 psi high side where should I look for prob.


Sounds like the fittings are reversed.
With the compressor running, the low side should drop below zero then climb to 60 or 80 psi as you add freon.
You would need to jumper the low pressure switch to engage the compressor clutch to add freon. The compressor must be running.

Mar 22, 2015 | Cars & Trucks

1 Answer

1999 Ford Ranger AC low side pressure reads 100 psi


Was the a/c compressor running when you got this reading?

Feb 03, 2012 | Ford Ranger Cars & Trucks

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AC blows warm. fan + compressor don't seem to engage.


The system could be low on refrigerant. The A/C pressure switch will not let the compressor run if the system pressure is below 28psi or above 455psi to protect the compressor from damage. At low pressures not enough oil (mixed in with the refrigerant) will circulate, and at high pressures, the compressor seals will likely blow. You can get a set of A/C manifold gauges for R-134a and check the system pressures yourself or get a shop to check it and possibly add some R-134a. If the system pressure checks good, then the A/C pressure switch, the compressor clutch, or some relays will need to be checked.

Feb 05, 2011 | 2003 Honda Odyssey

1 Answer

Added freon to 2000 chevy suburban but its still not cool in front or back


Check the pressure of the low side port when the a/c is running the compressor. It should read 25 psi to 45 psi. If it's too low then it may be leaking out.

Check that the compressor is turning when the a/c is turned on.

Sep 18, 2010 | 2000 Chevrolet Suburban

2 Answers

Air conditioner does not cool in 2000 Yukon.How do I check freon level and how to replace freon if need be


Get an r134a refrigerant add kit from Walmart or your local auto parts store.

You can even get a can of Arctic Freeze by Intermatics that has a hose and a gauge on it.

Connect the hose to the low side port. You can find this port on the 'thicker' piping that comes off of the compressor (versus the thinner piping that comes off the compressor which is the high pressure side).

Pressure should read 25 psi to 45 psi on the low pressure side when the compressor is running and the a/c is on.

Pressure should read 75 psi to 100 psi on a hot day when the car is off.

However, you'll want the a/c to be running when you add freon.

Press the button on the can to install more freon, if needed.

Aug 19, 2010 | 2000 GMC Yukon Denali

1 Answer

I just put in freon and now it wont give out cool air


Is the compressor engaging and did it engage before adding freon?
What is the pressure on the gauge for the low side? 25psi to 45 psi is normal when the engine is running and the compressor is turning.

If the compressor is not turning the pressure should read 75psi to 100psi, before the compressor starts turning.

Also, the radiator fan should go on when you engage the air conditioning by turning it up to max.

Jul 04, 2010 | 1999 GMC Yukon

1 Answer

I HAVE 05 SORENTO. A/C WAS BLOWING COLD THEN STOPPED. CHECKED COMPRESSOR FOR POWER AND IT IS NOT GETTING ANY. CHECK PRESSURE ON LOW SIDE AND THE READING WAS 135 PSI. I LEAKED SYSTEM DOWN TO 49 PSI AND...


You need to put that freon back in the system, if a/c compr not on you will have that reading on your low and high side due to the freon not being compress, start with check the elec. side of it, like fuses, relays and a/c switch.

Jun 29, 2010 | 2005 Kia Sorento

2 Answers

96 Tahoe no Cold Air


YOU NEED 28 PSI ON LOW SIDE AND ABOUT 190 ON HIGH SIDE.YOUR REFRIGERANT IS LOW THAT WHY COMPRESSOR CYCLING ON AND OFF.

Jul 22, 2009 | 1996 Chevrolet Tahoe

1 Answer

I have a 1998 GMC Jimmy & there's no power going to my low pressure switch which is located on the accumulator. I ran a hot wire from the battery to the ac compressor, filled the system with 1.8lbs of...


Running a hot wire bypasses any compressor cycling. Low side should pull down to 20 psi or less when compressor is hot wired. If not pulling down you may have weak compressor or way to much freon in system.

Jul 14, 2009 | 1998 Chevrolet Cavalier

2 Answers

1993 buick century


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