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Posted by dave on December 08, 2007 at 05:17:38:
In Reply to: Worcester Bosch 24CDi RSF Problem posted by Mark Nolan on August 20, 2006 at 12:23:52:
Yes there seems to be a problem with the servo valve and diaphram switch. They seem to stick preventing the boiler to do its job. I am pretty positive it is this. good luck !!
from dave