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Low side pressure for Fujitsu 12RLQ

I want to check hi side and low side pressures on a mini split Fujitsu 12 RLQ system

Posted by Anonymous on

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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SOURCE: air con does not run

The compressor valve weak

Posted on Jan 12, 2008

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burzerko
  • 254 Answers

SOURCE: mini split down

Your quite welcome please rate me. Feel free to contact me for any questions in the future using the ask me button.

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Zerko

Posted on Aug 30, 2008

  • 334 Answers

SOURCE: Bon-Air mini split 1.5 ton, suction and discharge

Sorry to sat but the tech has no idea what he is doing. The metering device is in the discharge valve, making that line a low pressure, not high. If the "suction" line is hotthen it is running in heat mode.

Posted on Jun 25, 2009

woodchuck789
  • 4066 Answers

SOURCE: My new LG mini split

The larger tube is the return tube for the hot freon gas from the evaporator. The small tube is the cold freon after is has gone through the condenser where gas is condensed to a liquid when the heat is removed. So I would say your system is low on freon.

Posted on Jun 09, 2011

  • 125 Answers

SOURCE: I have a 12000 btu

It has lost its refrigerant charge again. Have someone find and fix the leak before recharging or it will just leak down again.
Hope this helps

Posted on Sep 09, 2011

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1 Answer

Lg split system wont stay on


When the freon is low the unit will start. When the compressor starts the low pressure side drops and shut it off as the high pressure rises. The low pressure switch shuts off to protect the compressor when there is not enough freon to carry the oil to lubricate it.

Oct 18, 2014 | Heating & Cooling

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

My split system keeps kicking out it runs for a while if i shut down and restart but compressor kicks out after 5 min. it is contrlled with remote


Hi,
The unit is usually low on freon when this happens...the machine will over ride the freeze stat and the low pressure control for five minutes and then shut down...
Have a tech. check the system for leaks and repair them.
Then recharge the system and you'll be good to go...

heatman101

Jul 05, 2011 | LG LS-L1210CL Mini Split Air Conditioner

1 Answer

System 3 in-door with system 4 out door inverter. all in door unit show error code CH24 pls help


CH 24-Splits and Multi Splits = High or low pressure trip. Low at 1 bar High at 35 bar check pressures. Multi V = High pressure trip.

Nov 17, 2010 | LG LS-L1210CL Mini Split Air Conditioner

2 Answers

WE have Amcoraire Mini split unit heat pumps. One is


P 4 code means problem with the outdoor unit, Most likely low on refrigerant. Check all copper pipe connections for leaks first, then add refrigerant after checking pressures.

Jan 17, 2010 | AmcorAire UCHW-H12AF2 Split System Air...

1 Answer

Fedders split system hp 5ton 10 seer.liquid icing with low suction line pressure in cooling mode .system is not low on freon


check air flow may be evap need cleaning or belt or air filter cloged the last low pressure needcomplette freon charge or opposite need to reduce freon pressure.

Aug 29, 2009 | Heating & Cooling

2 Answers

Indoor unit temperature between 60F & 70F after R22 charge..


The pressure changes with temperature, it is not a true gauge to ensure a proper charge.

You should have a 15 to 20 degree temp drop across the evap coil. (return air vs supply air)

Can you verify that the compressor is running?
Not the condenser, but the compressor located inside the condenser (outdoor unit)

it really sounds like it is still undercharged.
Check the temp drop, let me know what it is.
Also tell me what the outdoor ambient temp is.

( for example.... 98 degree outdoors with 85 degree indoor temp could result in pressures something like 325 on the high side and 75 or 80 on the low side.
With the exact same unit, but 80 degree outdoor temp combined with 70 degree indoor temp, your pressures could read 215 low side and 55 low side. Not to mention that more efficient units often have higher pressures on the low side because they have more coil space and remove heat more efficiently)

Aug 21, 2009 | Sanyo Split System Air Conditioner

1 Answer

Senville mini split codes


Put gage on low side and check the pressure running. if it is less than 125 you probably have a leak.

Apr 30, 2009 | Heating & Cooling

1 Answer

I am looking for the service manual for fujitsu 12rlq unit.


Low side pressure will be about 130 psig.
High side will be about 418 psig.

Apr 08, 2009 | Fujitsu 18C1 Air Conditioner

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