will draining and trying to free sludge between boiler and hot water cylinder with flexible wire possibly clear a blockage - cleaner put in waiting another week to drain .We are lost -what else can we do.PLEASE HELP
Thanks PETE
HAVE I TO DRAIN THE SYSTEM TO GET AIR LOCK OUT.ONLT DRAIN IS BY PUMP NO DIVERTER VALVE OR BLEED IN SYSTEM
DAVE GIBBONS, February 2007
Hi Dave, if you have a fully pumped system you need to make sure the pump is working, also check that any zone /diverter valves are working correctly.
If the hot water is a gravity system you may have an airlock in the flow or return.
