2002 Ruud Achiever 90 Gas Down draft

Old 02-11-18, 08:50 AM
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2002 Ruud Achiever 90 Gas Down draft

I have been having intermittent issue with this 2002 Ruud gas furnace achiever 90. What happens is some times when the furnace blower kicks on the flame immediately goes out and blower will run still and then the flame will ignite then go back off while blower still runs and then it may do that again and then lock out with 1 blink and two second pause then blink. Keep in mind it does not do this all the time, seems to be more common when temps outside drop below 25-30 degrees. What is wrong with this furnace? I have checked the filter the condensation drain is flushed and the flame sensor has been cleaned.

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