Carrier Weathermaster 9200 flame roll-out switch problem
My 11 year old Carrier is having a couple of problems. It seems that several times per day the flame roll-out switch kicks. I reset it and the furnace fires up ok...but then kicks again. I am thinking of replacing the switch - logical, right? However, the top of the unit (above the combustion chamber) gets very hot - too hot to keep you hand on it for more than a second or two - it is also giving off an ozone-type odor, (possibly the vent sealant cooking). The service guy said that your heat exchanger may be bad/clogged - and you might as well replace the whole furnace given its age.
Two questions - 1)is it time to replace the furnace (is 11 yrs too long for this unit to be in service),
and, 2)a new roll-out switch may fix my problem - but what about the heat exchanger...is there a way to service this?