More details, what boiler, make and model, does it have a circular pressure gauge on it, if it does wwhat does the needle, (Black) point too? is it a combi - or do you have a small header tank in loft.
Dave
May 2010
Triangle usually means there is a fault on the pump or low water pressure your boiler must be baxi system or potterton system? they are main probs but read manual for your type of boiler
Stephen
May 2010
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