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Lg compressor model QP442pba what is the pressure of low side and the pressure of high side?

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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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SOURCE: a/c warm low and high side pressures wrong

it could be one of 2 things.
you didn't vaccum it all the way or there is b clog in the system. next time u flush it run about 1/8 cup of rubbing alcohol through it . then push clean air through it. then refill it. if that doesnt work replace the seals on the compressorlow and high side lines/manifold.

Posted on Jan 05, 2009

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SOURCE: A/C compressor clutch won't engage, system won't cool

Your system might be low on freon. Get a kit with a hose that has a gauge on it so you can see if you are in the "Good" range. The cycling switch won't close unless there is enough freon in the system. You can temorarily jumper the connector for the cycling switch to see if the compressor will come on. If it does, you are low on freon for sure. Do not let the compressor run for more than 15 - 30 seconds with it jumpered.
report back results.

Posted on May 21, 2009

co7196
  • 3433 Answers

SOURCE: I need a wiring diagram for the ac to find the high and low pressure valve and the compressor switch .

No you don't. The hi/lo awitch is on the tubing at the drier.

Posted on Jun 27, 2009

  • 1 Answer

SOURCE: Looking for low pressure port for servicing Freon

The ports on my 2005 silverado are on the same line,which is very confusing but, in between the two ports is the metering device (orifice) which changes the high pressure gas into a low pressure gas.The two ports are of a different size,with the low pressure being the smaller of the two. You can put your hand on the line, on each side of the metering device connection and the high side will be hot and the low side will be cold

Posted on Jul 18, 2009

greg_margo
  • 1959 Answers

SOURCE: AC not cooling for 97 Passat TDI

First recharging throug the high side is extremely dangerous and is discouraged by most HVAC mechanics.
High side pressure should read approx. 5x the low side. Low side pressure should read in the 40-45psi range unless otherwise specified by the manufacturer. Guess here is the system is overcharged is you're getting 70psi on the low side. Overcharging will damage the compressor and will underperform. Below is a link to a great source of information on AC.
http://www.cyberbright.com/autobin/air_conditioning.htm
Best of luck with your problem.
Greg

Posted on Aug 01, 2009

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1 Answer

Where is the low pressure cycling switch?


Low pressure rarely goes bad, it is always on. It works the opposite of the high pressure switch. When the pressure gets to high on the low side, the switch will cut off the compressor. Low switch is usually by the compressor or mounted in the compressor. What's your A/C not doing.

Apr 30, 2016 | 2001 Chevrolet Malibu

1 Answer

93 Allante AC Compressor won't come on to recharge system


On most models you would need to jumper the low pressure switch while you are recharging the system. There should be a low pressure switch on the low side line and a high pressure switch on the high side or on the compressor.

Jul 14, 2014 | Cadillac Allante Cars & Trucks

1 Answer

Replaced all A/C major components (compressor, filter-drier accumulator, and orifice tube) except condenser due to a seized compressor and failed clutch bearing. Flushed system and appeared to have no...


It sounds like you've done just about everything except to check if there is a bad or intermittent wire causing this or perhaps your low-pressure safety cutout switch is possible going bad causing the compressor to kick on and off?

Nov 01, 2013 | Lincoln Town Car Cars & Trucks

1 Answer

Add fREON bird low


H stands for High Pressure and the L stand for Low Pressure.
The A/C system is split into two sides, a high pressure side and a low pressure side. An AC compressor is basically a pump, so it has to have an intake side (low pressure side) and a discharge side (high pressure side).

Sep 18, 2013 | 2003 Suzuki Aerio

1 Answer

Forester ac compressor cycles every few seconds but pressure on lp side shows high in gauge


Is it possible you hooked up to the factory service port on the high side instead of the low side port ?
Can you hook up a set of gauges to both high and low ports ?

Jul 27, 2012 | Cars & Trucks

1 Answer

Is the low pressure side of 92 F-150 on the condenser or near the compressor.


LOW PRESSURE SIDE IS THE SUCTION CHARGE SIDE WILL BE FROM AC COMPRESSOR REFRIGERANT LINE TO THE ACCUMULATOR OR DRIER TO THE EVAPORATOR IN THE FIRE WALL THE AC COMPRESSOR LINE TO THE CONDENSOR IS THE HIGH PRESSURE SIDE YOUR DISCHARGE SIDE. DONT DONT TRY CHARGING AC SYSTEM AT THE HIGH PRESSURE SIDE. CHARGE AT THE LOW PRESSURE SIDE.

Aug 18, 2011 | Ford F-150 Cars & Trucks

2 Answers

When i turn on the a/c,the compressor does not work


CHECK REFRIGERANT CHARGE. USING A MANIFOLD GAUGE SET. HOOK MANIFOLD GAUGE SET TO LOW PRESSURE PORT AND HIGH PRESSURE SIDE PORT. LOW SIDE PRESSURE SIDE SHOULD HAVE 25 - 36 PSI AND HIGH PRESSURE SIDE SHOULD BE 178 - 237 PSI. IF LOW SIDE PRESSURE SIDE READ BELOW 20 PSI THE LOW PRESSURE SWITCH WILL NOT TURN ON THE AC COMPRESSOR CLUTCH NEED TO ADD LITTLE MORE REFRIGERANT. IF REFRIGERANT LEVEL CORRECT CHECK AC COMPRESSOR FUSE AND RELAY.IF POWER GOING TO AC COMPRESSOR CLUTCH YOUR COMPRESSOR CLUTCH HAS OPEN WINDING. AC COMPRESSOR CLUTCH NEED REPLACING.

Aug 11, 2011 | 1997 Nissan Pathfinder

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

What is the high and low pressure on 1997 toyota


The high and low pressure is refer the hose BEFORE (low) and AFTER (high) the A/C air compressor.

Low side can range from 0 (dead compressor) to 120+ (overcharged system)

High side can range from 0=dead to 170++ overcharged or damaged compressor.

DO not attempt to charge the system unless you has the correct manifold A/C unit and hoses to do the job.

Jul 16, 2009 | 1997 Toyota Camry

1 Answer

I cannot differentiate between the low pressure and high pressure


This is a little A/C 101. Follow the A/C lines. All A/C systems have a high pressure side and a low pressure side. The high pressure side is from the compressor to the condenser coil on the front of the vehicle to the evaporator coil in the dash. At the expansion valve in the evaporator the pressure drops. At the expansion valve the refrigerant changes from a liquid to a gas. This provides the cooling. The low pressure side is from the evaporator back to the compressor. Usually the high pressure lines are smaller than the low pressure (suction) lines.

Jun 13, 2009 | 2003 Chevrolet Silverado 1500

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