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Honeywell Furnace Control Board
Commonly used in Armstrong but may also be used in Lennox, Ducane, Concord and possibly other furnaces.
ST9120A 2004 promptly after payment via USPS Priority Mail - if you pay before midnight Eastern time it will ship the next morning.
I do not make a profit on shipping. Shipping cost equals the cost of postage $8.40 plus the 12.6% fee charges on shipping $1.05 for a total of is a used part removed with care from a working furnace.
Checked before removal in the furnace to be sure it works as it should with no issues. Inspected after removal to be sure there are no broken parts or bad solder check part numbers and photos to be sure this is the part you need before purchase. If it is - this is an excellent value!
Buyers are responsible for purchasing the correct part for their application and for correctly diagnosing the need for this part.
While I can guarantee this part is in excellent condition - it has been checked and it works as it should, I cannot guarantee it will fix your furnace. If it fails to fix your furnace this does not mean something is wrong with the part. (Again this board was checked in a working furnace and it has no issues). It does mean you have either installed it incorrectly, your furnace has another issue, or you purchased the wrong part. I sell parts for less than average and returns are not included in my pricing.
If you have any questions or issues please feel free to write and I will do my best to help - thank you for your interest.