Need help with Purge


  #1  
Old 11-07-07, 11:14 AM
D
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Need help with Purge

I have a Honeywell Minizone emm-3u control board on my heating and AC unit. For some reason when a call to heat is made and the call is terminated the heat light on the board turns off but hot air continues to blow. I assumed this is the purge mode cooling off the unit so some heat should be expected. However the purge mode never stops. It will keep running until the boot button or the purge override button has been pressed or of course the breakers are thrown to the unit. The unit behaves as it should with a call for AC this just happens on a call for heat. Any suggestions?
 
  #2  
Old 11-07-07, 04:42 PM
Ed Imeduc's Avatar
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Wink

Is this a new set up??? How many zones there?? Could be a sequencer still stuck on the electric back up???
 
 

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