Combination boiler went down at the Armitage school job site yesterday

I was wrapping up a restroom renovation at that Armitage elementary school off North Avenue when the Cleaver-Brooks unit just locked out on me around 3 PM. Took a good 45 minutes digging through the manual to realize a cheap limit switch had failed and it was a 30 dollar part. Has anyone else had these newer boilers throw codes over something that simple or am I just getting unlucky?

2 comments

2 Comments

blair_davis1mo ago

That limit switch thing happened to me back in February on a different job. I was working on a hot water loop for a small church basement and the boiler kept showing a high limit error. Spent two hours swapping sensors and checking wiring before I found a single wire nut that had come loose. I hate how these newer units make you chase ghosts like that. The old boilers I learned on just either worked or didn't, none of this code reading nonsense. You'd think spending thousands on a new system would mean fewer headaches, not more.

campbell.robin1mo ago

Read an article in Plumbing & Mechanical last month that said 60% of service calls on new boilers end up being bad connections or loose wires, not the actual controls failing. Makes you wonder if the real problem is just rushed installation work.