Blows cold for 1 min

Discussion in 'HVAC' started by sirwesleyb, May 17, 2012.

  1. May 17, 2012 #1

    sirwesleyb

    sirwesleyb

    sirwesleyb

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    History: I noticed my ac unit was frozen up super bad. The copper was all frozen around the unit. I had only moved in a month ago and had not yet changed the filter. I changed the filter and the old filter looked like an old rug it was extremely bad. I let the unit thaw out for a day.

    So now when i turn my ac on it only blows cold air for about 60 seconds and then stops blowing anything all together. I can tell it is starting to freeze up in the short time that it runs...i think. The fan still works when i have the system set to off and turn the fan to on. But why does it only blow cold for about 60 seconds when I initially turn it on? It stops pulling air all together. I stuck my hand where the filter is and nothing is pulling. Any help would be great. Thanks.
     
  2. May 17, 2012 #2

    kok328

    kok328

    kok328

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    Sounds like the system is low on freon and the low pressure switch is shutting down the system. You'll need to have the freon level checked.
     

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