Shortly after moving into our current home some 17 years ago, I converted half the unfinished basement into a home theater and recreation room. During that project, we added a hydronic heating system to warm the new areas plus my shop during the winter. With all of the insulation we added, it turns out that the new boiler has rarely been called into service. When it stopped operating several years ago, there was little impetus to fix it. Now that we are preparing to move, it is important that everything in the house is working properly. While investigating the problem, I discovered that the controller board for the impeller motor had a blown chip on it (likely due to extreme overheating). What remains to be seen, is if I can order just the controller board, or if it will come with a $300 motor attached.