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Author Topic: how to tell which board a lennox heater needs  (Read 1065 times)

Offline haroldshell

  • Technician
  • Member Since: Sep 2015
  • Posts: 168
how to tell which board a lennox heater needs
« on: February 14, 2017, 09:45:48 PM »
model g61mvp-36b--070-06, serial 5905k01866, board 49m5901, lights say flame sensed before proof. cleaned sensor, same error. seems like board, but cannot get straight answer on which board is the replacement. three numbers, y4142, 12x80 and 21m51u. help!!!

Offline haroldshell

  • Technician
  • Member Since: Sep 2015
  • Posts: 168
Re: how to tell which board a lennox heater needs
« Reply #1 on: February 21, 2017, 09:17:29 PM »
No prob, got it figured out. Seems like the electronics like to win once in a while.  :rofl:

 

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