I have a question for all those Rational sluggos out there.
I have an SCC202G. Bout every other month or so it dies. Upon inspection, I find the 2.5 amp control/transformer fuse blown. I also find that the boiler hi limit has tripped. I replace both and its off to the races again. The boiler set temp is set for 214deg. I called Rational here in Chicago and I can here them shrug their shoulders, over the phone. I have five other units that run ok. My question is, has anyone else experenced this and how can I turn the boiler temp down to 212/213. ?