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I have a Fujitsu ASTA24LCC heat pump and it has stopped going, but is showing some form of fault code. Operation & Timer lights flash together twice then operation light flashes 5 times. What does this mean?

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  • Anonymous Aug 23, 2008

    Exactly same problem happens during the night (second night now). Got it going again last night by turning power off at mains. Not really the way it should go?

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Check your filters. Manual says they need to be cleaned every two weeks under normal operation (and in my case more often during renovations). It seems it may not take much to limit air flow enough for the indoor unit to trip out. Hope this helps.

Posted on Aug 24, 2008

  • ivarsa Sep 04, 2008

    Another way this can happen for me it seems is, if it is frosty outside and I crank up the heating by 3 or 4 degrees the unit trips out. Turning it off at the mains and waiting a while before attempting to restart did the trick this morning. Don't bother to ring Fujitsu for information - you will be wasting your time!

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