Oil Furnace won't light every 6 days


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Old 01-31-13, 01:18 PM
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Oil Furnace won't light every 6 days

I have an older Fuel Oil Furnace Manufactured by Armstrong Air Conditioning Inc Model #LBF80B84/95D12-3A. I had it serviced about 3 weeks ago, cleaned/changed nozzle, filter and air filter. Since then every 6 days, roughly, the furnace will not run when heat demand is sent. I can press reset button and it may start on first try and may not. It has not taken more than twice to fire. I have fuel and it runs without a hitch until that random moment. I was figuring it to be the transformer but not sure since so close to being serviced. Seems odd the intermittent no fire started after service. Thanks for any help.
 
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Old 01-31-13, 07:32 PM
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Could be any number of things but an electrode adjustment is the most common.
 
 

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