furnace issues

Old 02-14-15, 10:20 AM
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furnace issues

i have a furnace about 15yrs old replaced thermocoupler. my pilot light will stay lit but when i turn on the heat the burners fire but will shut off after 5 min even the pilot any advice will be helpful
Old 02-14-15, 01:19 PM
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Your pilot burner probably needs a good cleaning. There is probably rust or carbon partially clogging the pilot orifice. Remove the pilot assembly, scrub with a small wire brush, flush with carburetor cleaner or similar solvent, blow out with canned air, re-install & try it.

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