Have a FMC 120 running for 4 1/2 years on NG. There have been 3 failures which cost $$$ in repair charges. The first blower failed prematurely after 20 mos. and the second just failed 30 mos. later. The Tyco 0014 main circulator failed at 50 mos. The installation conforms to all the manual specs, however the vent and supply 3″ pipes calculate out to 53′ vs the max limit of 55′. To Burnham’s credit they reimbursed me for the first blower failure and I have a request in for the second. The service Reps are on the phone to Burnham 10 minutes after they arrive to trouble shoot and even then do not always get it right the first time. I had to find the blown Tyco pump myself and kept the service Rep from installing a new control board which was not the problem. Has anyone else had premature blower failures and figured out how to prevent them?
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