I had a similar problem. I purchased two of the early versions of the 110. It turned out that the problem was with the ignition. CH was aware of the problem. Their explanation of the problem was not clear but related to some type of heat breakdown. One ignition did what you described and then ultimately expired. The other ignition began to exhibit the same symptoms. I contacted BME, Keith was out at the time and the person who answered referred me to CH. CH repaired both ignitions and there have been no further problems.
Mike