Question about AmcorAire UCHW-H24AF2 Split System Air Conditioner

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No cooling. compressor works, and refrigerant is in the system

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How much refrigerant what is the pressure also is the fan running outside and if so you may have moisture or air in the line which is not able to be condensed

Posted on Jul 27, 2009

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Refridgerator not cooling compressor is running but not cooling


If compressor running but not cooling it is very likely that you have no or little refrigerant in system. U can confirm this by using an ammeter and taking a measurement of current consumption. It will be less than spec since the compressor is not compressing or doing any work.

May 08, 2017 | Refrigerators

1 Answer

Lincoln MKT - air conditioner won't stay cold


It could be any of a number of things:

  • Low refrigerant. An A/C system requires a certain amount of refrigerant to cool properly. If low, it works less efficiently and does not cool well.
  • Dirty condenser -- The condenser is the heat exchanger mounted in front of the radiator. It cools the high pressure refrigerant vapor after it exits the compressor so it can condense into a liquid. If the condenser is full of leaves, bugs and road debris, air flow through the unit may be blocked to the point where little cooling occurs. Cleaning the condenser should cure the problem.
  • Inoperative condenser cooling fan. The condenser often has its own separate electric cooling fan. This fan should come on and remain on when the A/C system is operating. If the fan motor, motor relay or wiring is defective, the fan may not be working.
  • Air or moisture contamination -- For the refrigerant inside the system to do its job properly, it must not be contaminated with air or moisture. Air reduces the cooling efficiency of the system while moisture can freeze and form ice that causes blockages in orifice tubes and metering valves. Air and moisture contamination may be the result of unrepaired leaks in the system, or failing to vacuum purge the system prior to recharging it with refrigerant.
  • Blockages -- Debris, rust or debris in the system may plug up the orifice tube or metering valve that admits refrigerant into the evaporator. If this vital point becomes obstructed, the flow of refrigerant may be restricted or blocked causing a loss of cooling -- and possible compressor damage as well in systems that rely on oil circulating with the refrigerant for lubrication.
  • Mechanical problem -- These include things like metering valve failures, compressor wear, a compressor clutch that fails to engage, bad pressure switches, etc.
  • Jul 16, 2011 | Air Conditioning and Heat for Lincoln MKT

    1 Answer

    Air conditioning stopped working suddenly. power not getting to clutch . fuse ok


    It could be any of a number of things:in your case I would look under the hood at the fuses and relays there , here are some other things

  • Low refrigerant. An A/C system requires a certain amount of refrigerant to cool properly. If low, it works less efficiently and does not cool well.
  • Dirty condenser -- The condenser is the heat exchanger mounted in front of the radiator. It cools the high pressure refrigerant vapor after it exits the compressor so it can condense into a liquid. If the condenser is full of leaves, bugs and road debris, air flow through the unit may be blocked to the point where little cooling occurs. Cleaning the condenser should cure the problem.
  • Inoperative condenser cooling fan. The condenser often has its own separate electric cooling fan. This fan should come on and remain on when the A/C system is operating. If the fan motor, motor relay or wiring is defective, the fan may not be working.
  • Air or moisture contamination -- For the refrigerant inside the system to do its job properly, it must not be contaminated with air or moisture. Air reduces the cooling efficiency of the system while moisture can freeze and form ice that causes blockages in orifice tubes and metering valves. Air and moisture contamination may be the result of unrepaired leaks in the system, or failing to vacuum purge the system prior to recharging it with refrigerant.
  • Blockages -- Debris, rust or debris in the system may plug up the orifice tube or metering valve that admits refrigerant into the evaporator. If this vital point becomes obstructed, the flow of refrigerant may be restricted or blocked causing a loss of cooling -- and possible compressor damage as well in systems that rely on oil circulating with the refrigerant for lubrication.
  • Mechanical problem -- These include things like metering valve failures, compressor wear, a compressor clutch that fails to engage, bad pressure switches, etc.
  • Jul 14, 2011 | Air Conditioning and Heat for Toyota...

    1 Answer

    I just went out to my 2002 Volvo XC70 and turned on the car. The A/C would not come on. I just had the compressor replaced a couple of months ago. Could it be a fuse? thanks for any help.


    yes it could be a fuse heres other items to check

    It could be any of a number of things:

  • Low refrigerant. An A/C system requires a certain amount of refrigerant to cool properly. If low, it works less efficiently and does not cool well.
  • Dirty condenser -- The condenser is the heat exchanger mounted in front of the radiator. It cools the high pressure refrigerant vapor after it exits the compressor so it can condense into a liquid. If the condenser is full of leaves, bugs and road debris, air flow through the unit may be blocked to the point where little cooling occurs. Cleaning the condenser should cure the problem.
  • Inoperative condenser cooling fan. The condenser often has its own separate electric cooling fan. This fan should come on and remain on when the A/C system is operating. If the fan motor, motor relay or wiring is defective, the fan may not be working.
  • Air or moisture contamination -- For the refrigerant inside the system to do its job properly, it must not be contaminated with air or moisture. Air reduces the cooling efficiency of the system while moisture can freeze and form ice that causes blockages in orifice tubes and metering valves. Air and moisture contamination may be the result of unrepaired leaks in the system, or failing to vacuum purge the system prior to recharging it with refrigerant.
  • Blockages -- Debris, rust or debris in the system may plug up the orifice tube or metering valve that admits refrigerant into the evaporator. If this vital point becomes obstructed, the flow of refrigerant may be restricted or blocked causing a loss of cooling -- and possible compressor damage as well in systems that rely on oil circulating with the refrigerant for lubrication.
  • Mechanical problem -- These include things like metering valve failures, compressor wear, a compressor clutch that fails to engage, bad pressure switches, etc.
  • Jul 14, 2011 | Air Conditioning and Heat for Volvo XC70

    1 Answer

    Air conditioner turns on but no air comes out. does it works with a fuse or sensor if so where is it located in the scion tc 95. can someone help me or list the possibles problems that i can look out for...


    It could be any of a number of things:

  • Low refrigerant. An A/C system requires a certain amount of refrigerant to cool properly. If low, it works less efficiently and does not cool well.
  • Dirty condenser -- The condenser is the heat exchanger mounted in front of the radiator. It cools the high pressure refrigerant vapor after it exits the compressor so it can condense into a liquid. If the condenser is full of leaves, bugs and road debris, air flow through the unit may be blocked to the point where little cooling occurs. Cleaning the condenser should cure the problem.
  • Inoperative condenser cooling fan. The condenser often has its own separate electric cooling fan. This fan should come on and remain on when the A/C system is operating. If the fan motor, motor relay or wiring is defective, the fan may not be working.
  • Air or moisture contamination -- For the refrigerant inside the system to do its job properly, it must not be contaminated with air or moisture. Air reduces the cooling efficiency of the system while moisture can freeze and form ice that causes blockages in orifice tubes and metering valves. Air and moisture contamination may be the result of unrepaired leaks in the system, or failing to vacuum purge the system prior to recharging it with refrigerant.
  • Blockages -- Debris, rust or debris in the system may plug up the orifice tube or metering valve that admits refrigerant into the evaporator. If this vital point becomes obstructed, the flow of refrigerant may be restricted or blocked causing a loss of cooling -- and possible compressor damage as well in systems that rely on oil circulating with the refrigerant for lubrication.
  • Mechanical problem -- These include things like metering valve failures, compressor wear, a compressor clutch that fails to engage, bad pressure switches, etc.
  • Jul 14, 2011 | Air Conditioning and Heat for Scion xB

    1 Answer

    AC COMPRESSOR CLUTCH WON'T ENGAGE.


    It could be any of a number of things: be sure and check the fuses and relays under the hood in that fuse panel , also the mail switch inside ,, you can jumper those contacts to see if it's the switch , here are some other ideas

  • Low refrigerant. An A/C system requires a certain amount of refrigerant to cool properly. If low, it works less efficiently and does not cool well.
  • Dirty condenser -- The condenser is the heat exchanger mounted in front of the radiator. It cools the high pressure refrigerant vapor after it exits the compressor so it can condense into a liquid. If the condenser is full of leaves, bugs and road debris, air flow through the unit may be blocked to the point where little cooling occurs. Cleaning the condenser should cure the problem.
  • Inoperative condenser cooling fan. The condenser often has its own separate electric cooling fan. This fan should come on and remain on when the A/C system is operating. If the fan motor, motor relay or wiring is defective, the fan may not be working.
  • Air or moisture contamination -- For the refrigerant inside the system to do its job properly, it must not be contaminated with air or moisture. Air reduces the cooling efficiency of the system while moisture can freeze and form ice that causes blockages in orifice tubes and metering valves. Air and moisture contamination may be the result of unrepaired leaks in the system, or failing to vacuum purge the system prior to recharging it with refrigerant.
  • Blockages -- Debris, rust or debris in the system may plug up the orifice tube or metering valve that admits refrigerant into the evaporator. If this vital point becomes obstructed, the flow of refrigerant may be restricted or blocked causing a loss of cooling -- and possible compressor damage as well in systems that rely on oil circulating with the refrigerant for lubrication.
  • Mechanical problem -- These include things like metering valve failures, compressor wear, a compressor clutch that fails to engage, bad pressure switches, etc.
  • Jul 13, 2011 | Air Conditioning and Heat for Hyundai...

    1 Answer

    Need info for a kenmore side by side refrigerator model#59652673202 it it not cooling nor freeszing ; the light works and the fan works but not cooling any side please help me


    Good day,
    With that amount of info it would be hard to try to pinpoint it. Here's a list of items that can cause a refrigerator to not cool.

    Items that will cause a refrigerator not to cool.....
    1. Defective thermostat
    2. Defective freezer fan motor
    3. Defective defrost timer
    4. Defective defrost thermostat
    5. Defective defrost main heater.
    6. Defective condenser fan motor
    6. Defective compressor overload protector
    7. Defective compressor start relay
    8. Defective compressor start/run capacitor (some models only)
    9. Defective compressor
    10. Restriction in refrigeration sealed system
    11. Loss of refrigerant (leak)
    12. Excessively dirty condenser
    13. Broken wires, bad wire harness connectors, ect.
    14. Defective fan motor switch (some models only)

    As you can see it could be one of many,many items. If your handy with a meter you might want to start at the bottom back of the machine where the compressor is located.
    Sounds as if it is not running, or running without refrigerant in the system.
    Also, if it has a cooling fan motor in that area, make sure it runs, since all fan motors are wired to run at the same time.

    Oct 15, 2010 | Kenmore 44103 Side by Side Refrigerator

    1 Answer

    Compact Refrigerator stop cooling, I am out of ideas.


    Good day,
    If you hear the compressor running, then the overload and relay are O.K. It can be one of three things.
    1. Leak developed in system.
    2. Restriction internal in the refrigerator sealed system.
    3. Valves in compressor failed, which would not provide any pumping action for the refrigerant.

    None of these items are practical repairs on a compact. But if it's under warranty (under 5 years old), check with the selling dealer for warranty claim.
    P.S. Does not apply if coils were punctured.

    Thank you for using FixYa

    Jan 16, 2010 | GE GMR02BAN Compact Refrigerator

    1 Answer

    Compressor working, cooling coils hot, but unit won't cool below


    When you say fully charged, did you weigh the refrigerant? These small systems cannot tolerate overcharging by even small amounts because it will result in overpressure on the suction side. If there's too much refrigerant you get hot coils and cool but not cold evaporator. I typically pump the refrigerant into a recovery tank and then weigh it back in to get exactly the amount on the mfg label.

    Dec 12, 2009 | True 598-TSSU608ADA SandwichSalad Unit 155...

    1 Answer

    Refrigerator not cooling


    Did you lay this refrigerator down on its side or back when you were moving it? Is there a chance one of the tubing lines in the rear or under the refrigerator got damaged and allowed the refrigerant to leak out? If yes to either of the questions you will need a service technician to do a sealed system repair.
    There is probably a fan under the refrigerator near the compressor that should be running any time the compressor is running. If it is not running when the compressor is running the system will not work well.
    supertechks

    Mar 28, 2008 | Refrigerators

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