I had an old boiler that would sometimes trip and lock out the heat until someone went down and power cycled it. (It was its own monstrous hack of a gas burner fitted to a 1950s oil boiler and I think a flame proving sensor was bad.)

Every time it happened, it made for a long heat up cycle to warm the water and rads and eventually the house.

So I built an Arduino controlled NC relay that removed power for 1 minute out of every 120. That was often enough to eliminate the effect of the fault, but not so often that I had concerns about filling too much gas if the boiler ever failed to ignite. 12 failed ignitions per day wouldn’t give a build up to be worried about.

That ~20 lines of code kept it working for several years until the boiler was replaced.