i worked on heating/ac for 32 years and saw lots of potential problems on old, and new, units especially if a cracked/sooted heat exchanger was involved; professional services are ALWAYS the best remedy and one should not feel badly about paying for professional services. (at least i don't)
worst one i ever investigated killed five people; a baby-sitter and her child and the three children she was baby-sitting. a forced air heater that the blower motor door had fallen open causing the flames to be cycled into producing a lethal amount of CO.
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If you find yourself going thru hell, keep on going, don't stop.
Last edited by DON WALKUP; 09-18-2010 at 09:35 AM.
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