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E4 in an innovair a/c

After 30 mins the unit shuts down and blows hot air Turned on my Innovair mini split AC (18000 BTUs) display shows E4, then powered it off. Powered on again but now it blows hot air.

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  • jorget67 Jan 12, 2009

    Tried that but still same problem. When ac is turned on and standing near compressor, I can't hear the humming sound of the motor, I only hear the fan going. Probably need to call for warranty repair (hopefully)

    Thanks you anyway.


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Check the Capacitor.

Posted on Oct 06, 2011

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Hi! jorget67
Sound like the compressor overload is tripped. Make sure the condenser is clean then reset the breaker on this circuit.
Sincerely, InMrFixIt

Posted on Jan 12, 2009

  • Rian Peters
    Rian Peters Jan 13, 2009

    Hi! jorget67
    I believe you may be correct, but there may be some pressure switches or a leak, and there is a problem with the refrigerant. A service call will be necessary.
    Sincerely, InMrFixIt


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