I am angry with Worcester Bosch. We had a system for 30 years which never froze up. We had our present new boiler installed in April and for four days we have had no heat. Apparently if it says EA and the blue light blinks, it says on the answerphone, they will not come out. WHAT ARE WE SUPPOSED TO DO if everytime it is cold, the system freezes, surely that is a system which SHOULD NOT BE INSTALLED. If we reset it, it shudders badly, we are afraid of breaking the boiler

Anne Jarrett, December 2010

I have Had this problem this morning I defrosted the pipe, with hot water , the boiler is now working Ok, I have now lagged the pipe, every thing is working fine now 8th December 2010
William
Market Harborough

william, December 2010

Pour boiling water over the plastic pipe if practical, or blast it with a hair dryer for a while.

CMac, December 2010

this is probably due to the condensate pipe being frozen due to the weather being cold. this is usually the 22mm plastic pipe and it should run to a suitable drain point i.e soil stack. if this pipe runs externally it should be insulated with suitable pipe lagging to prevent it from freezing, if there is no lagging on this pipe it is probably the cause of your problem.

DR, December 2010