Question about Ruud UBHC Air Conditioner
A furnace goes through more checks than the Shuttle before it lights! First, on the control board, are there any lights blinking, if it did light, there should be. Somewhere there is a placard showing what the number of blinks means; I need to know what is says on the placard. In the meantime, check the draft fan sensor - it looks like a small flying saucer towards the top. Blow and **** on the tubes and listen for a clicking sound and look for the presence of any water in that tube. That switch verifies that the draft fan is on and the mains will not fire if the control board doesn't get the proper sequence of signal......off, sensor open, fan on, sensor closed, verify pilot, fire mains, verify mains all it (sensor at opposite end from pilot). Hope this helps, if not, get back to me with that control board code. Ron
Posted on May 06, 2009
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Posted on Jan 02, 2017
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