Original message
| Schnidly
 |  "Armstrong Ultra sx 90 gas furnace"
, posted Sat 8 Nov 14:08  
Can someone tell me what to look for? My Armstrong furnace seems to light one burner and blows cool air. the igniter gets red but only one burner lights, not sure what to look for.
Rick
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Replies:
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| jmar
| "Re(1):Armstrong Ultra sx 90 gas furnace" , posted Tue 11 Nov 19:04
potential to have cloggeed burner orfice call a pro
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