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lenox oil furnace board

Paul_69 Member Posts: 251
St9103a 1069 honeywell board in lennox oil furnace, does the standard one fit this or does trailer numbers have to match. Ohr23q3/4-105/120-5c model.also how to find line volt short that is wiping out boards wuthout frying more boards trying to locate it. Thx


  • John Mills_5
    John Mills_5 Member Posts: 946
    The universal ST9120U fan board doesn't replace the ST9103 according to the box. Not sure if there are any other universals that do.
  • Paul_69
    Paul_69 Member Posts: 251