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lenox oil furnace board

Paul_69Paul_69 Member Posts: 247
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


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