Post by ptelf on Mar 17, 2014 14:31:30 GMT -5
Hi there,
Ive got a Powermax 140 that is playing up abit.
It isn't supplying very hot water. I've noticed if I let the tap run fully open I get a supply of hot(ish) water. If the tap runs at low pressure the supply quickly goes cold.
The central heating is working fine
When the tap is fully on I can hear the boiler rumbling. From what I've read I suspect the heat exchanger might be scaled up or the blender valve?
On Wednesday a boiler man is coming to look but I don't want to be misled hence my research!
The boiler has been in the property since new - so is 12 years old.
Any help would be great
thanks