What kind of service tech won't work on something they didn't sell? Seems like the new, current line of contractors that all they want to do is sell. That Beacon Morris probably has a wiring diagram on the service access and more than likely has very similar function to a Reznor.
Unless you are really wanting it replaced, I would call someone else, or maybe call someone else any way.
I did indeed call someone else and there' testing was much more comprehensive.
He cleaned the sensors found a loose wire and noticed some heat induced discoloration on the board around some power resistors, that the first guy apparently overlooked. He cycled the power and the NG numerous times, and it appeared to be fixed, but he said if it failed again that it's time for a new controller board, and that there would be no additional service call fee, just the cost of the board. It only lasted a few hours and failed again.
He came back the next day and installed the board and it's been working fine since.
During the down time I called around for numerous quotes to replace the heater with a new 45,000 BTU unit heater, and they ranged between $2800 and $5500 installed. I was under the impression that regulations had tightened and that homeowners could no longer buy their own NG heaters, but this is not true. I had installed the original Beacon-Morris 45,000 BTU 12 years ago myself except for running the black pipe from the meter and installing the flu stack, and I'll be doing it again next time. I'll buy another of the same model and the stack and black pipe should be a snap to hook back up.
