|
Circuit breakers can sometimes beco sensitive to mechanical vibration. I'd ohm it out and if necessary wiggle it and or push/pull the button a couple of times before condemning it.
Sometimes power switches will get sticky and or dirty and the contacts will stay open or closed despite the handle being in the opposite state.
Another possibility is if you accidentally shorted the heater wiring there's often a fusible link (piece of magnet wire thinner than the rest of the wiring designed to burn open like a fuse if there's a short).
There's enough that could go wrong that no definite conclusion can be made from available info.
What I typically do in cases like this is pull the chassis and do bench resistance and voltage tests.
|