10-15-2009, 05:57 PM
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Senior Member
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Join Date: Feb 2006
Location: , , USA.
Posts: 130
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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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10-16-2009, 03:15 AM
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Super Moderator
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Join Date: Mar 2006
Location: York, PA. , USA.
Posts: 250
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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 10:07 AM.
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10-17-2009, 10:13 AM
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Administrator
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Join Date: Mar 2005
Posts: 2,110
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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.
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10-17-2009, 08:35 PM
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Senior Member
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Join Date: Feb 2006
Location: , , USA.
Posts: 130
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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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10-19-2009, 06:44 AM
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Administrator
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Join Date: Mar 2005
Posts: 2,110
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A few trip charges and service fees should enlighten them!
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