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  1. 09-08-2006, 10:27 AM #1
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    Condensor freez up



    Hi guys
    I have problem whit condensor on a/c unit its aicing up ,checked gas level ok. What is the best way to check revrcing valve i know by resictence bat what should be reading on my multi meter?


  2. 09-08-2006, 12:52 PM #2
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    Re: Condensor freez up

    what is the ambient temp and humidity where you come from?
  3. 09-08-2006, 11:13 PM #3
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    Re: Condensor freez up

    Come on Wolf, give us a clue, what make and model of unit is it ?

    You say that the gas charge is OK and then suspect the reversing valve; are the temperature across the reversing valve OK, does the slide operate ?
    Brian - Newton Abbot, Devon, UK
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  4. 09-08-2006, 11:41 PM #4
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    Re: Condensor freez up

    Hi, Wolf

    Maybe I am not right but...

    It is winter time now in Autralia, you use you A/C for heating. It is very easy to have too much humidity and your condenser/evaporator is frozen.

    Maybe your defrost function is not working properly...

    Best regrds, Josip

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  5. 10-08-2006, 12:13 AM #5
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    Re: Condensor freez up

    ok hahaha Airwell ,model cds110h ,R22 refrigerant
    Temperature accros revrsing valve is ok, slide operate,high humidity,system on heating and unit is aicing up? (refrigerant charge 100% ok)
  6. 10-08-2006, 03:17 PM #6
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    Re: Condensor freez up

    Sounds like a defrost problem then Wolf.
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  7. 12-08-2006, 12:17 AM #7
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    Re: Condensor freez up

    Could be the outdoor temperature sensors.
  8. 12-08-2006, 03:56 PM #8
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    Re: Condensor freez up

    [QUOTE=(refrigerant charge 100% ok)[/QUOTE]
    How do you know?
    It's better to keep your mouth shut and give the impression that you're stupid than to open it and remove all doubt.
  9. 12-08-2006, 04:44 PM #9
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    Re: Condensor freez up

    yes, how do you know, unless you weighed the gas out ? i am sure they dont have sight glasses and to say the gas is ok off pressures, they tell me you shouldnt do that?
  10. 12-08-2006, 07:02 PM #10
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    Re: Condensor freez up

    It's normal to see some frost on condensor coils in the heat pump mode below 35 deg. just befor it drops into defrost. If the system is charged properly than the coil will defrost in a couple of minutes. In high humid areas the melting frost can accumalate at the bottom of the condenser and refreeze. Check to see that the unit is elevated high enought for the water to leave the unit and holes in the bottom are clear of leaves or trash so water can drain free. If this is all good than the problem is the defrost controller or the thermister.
    Last edited by frank; 18-08-2006 at 11:18 PM.
  11. 14-08-2006, 09:04 AM #11
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    Re: Condensor freez up

    How do i now?(gas 100% ok) installed sight glass!
  12. 18-08-2006, 11:17 PM #12
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    Re: Condensor freez up

    Never charge to a full sight glass without taking pressure/temperature readings to confirm your opinions.
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