Question about Mitsubishi MSZ-A15NA Split System Air Conditioner

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Mr. slim MSZ-GE15NA indoor unit was working fine. Now when i turn it on it runs for 5 minutes then the operation indicator light goes from full on to blinking and the units turns off. the outside condensor never comes on.

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  • chuck136 Dec 30, 2010

    i'm not sure what was going on - i turned the power supply off (220v) and left off for about 5 minutes then reset thermostat. unit came back on and has been running fine since. i checked the blinking light - it ws blinking constant about every 1/2 sec. the manual suggested possible wiring issue - i checked the wiring on the inside and outside unit and the power at the outside disconnect. everything checked out fine. hope this was just a fluke. thanks for your response.

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  • Mitsubishi Master
  • 43,501 Answers

Hi,

There is either a problem with the outdoor unit fan or compressor or there is a communication problem between the two....

Did you check the number of blinks and then check the book to see what it means??...

Mitsubishi Air Conditioner Troubleshooting and Repair



heatman101

Posted on Dec 29, 2010

  • D. Floyd Kolb
    D. Floyd Kolb Dec 30, 2010

    You may have had a power glitch... either high or low voltage that messed with the unit... turning it off and then on reset everything again....



    You will likely be okay again...:-)


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