Halstead ACE HE 30 boiler. The fuse went on the PCB and was replaced but only lasted a few hrs. I have another spare but just wondered why the fuse blew so quickly. Could it be a bigger issue. There is some condensation within the boiler but the engineer didn't think it would be the issue.

Rob Andy, January 2022

https://www.manualslib.com/manual/917497/Halstead-Best-Db-30.html?page=25

I wonder if the fan or pump is failing and spits it's dummy out when warmed up.

Eheheh, January 2022