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  1. 10-15-2009 04:57 PM #1
    wineglow
    wineglow is offline Senior Member
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    Default power pack problem

    Ihave a customer with a mm4301 power pack with digital thermostat mmto12. About every 6 weeks I get a call for warm beer. The digital readout says E2, which manual says it means that unit lost it's settings in the units memory. I reset it and it lasts five or 6 weeks . Is something causing this or is it a bad thermostat.
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  2. 10-16-2009 02:15 AM #2
    TAPMAN
    TAPMAN is offline Super Moderator
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    Provided that your glycol strength is right, and length of run is within within tolerance for that unit, it sounds like a thermostat to me.
    Last edited by Scott Zuhse; 10-17-2009 at 09:07 AM.
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  3. 10-17-2009 09:13 AM #3
    Scott Zuhse
    Scott Zuhse is offline Administrator
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    In addition to Tapman's tips, be certain that this unit is on a dedicated circuit, condenser is clean, in a friendly environment, etc.

    It could be the thermostat. But if you replace it and the same issue occurs, you now have a spare thermostat.
    Scott Zuhse, Instructor Micro Matic Dispense Institute
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  4. 10-17-2009 07:35 PM #4
    wineglow
    wineglow is offline Senior Member
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    Thanks Scott, I told the customer several days ago that the unit was not on a dedicated circuit and all the outlets in the area were blackened from previous over heating and needed to be taken care of before I could do anything for him.
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  5. 10-19-2009 05:44 AM #5
    Scott Zuhse
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    A few trip charges and service fees should enlighten them!
    Scott Zuhse, Instructor Micro Matic Dispense Institute
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