i recently changed overheat stat on boiler because boiler kept tripping to lockout it runs 4 awile then locks out still cud it be the pcb bourd or sumething else
If the Pump is not running, the Boiler will Bang & Crash Violently and try to jump off the wall, it would run for less than one minuite before locking out, if the boiler is not Banging, (the OP does not mention this, and I think he would!) My money is still on the PCB 99.9% sure
www.elanar.co.uk
July 2009
if the overheat stat is cutting out then it will probably be overheating and not a faulty stat. check the pump for starters.
Ian
July 2009
Undoubtetly the PCB,
You should get a Registered Service Engineer to do this as the Replacement PCB comes with a Complete Wiring Loom as well and should only be done by a RGI
www.gassaferegister.co.uk will assist you to find an engineer near you