Recent content by Runninghotandcold

I've seen some values for the sensor but can't find them now. Do you know what I should be expecting to see, as I would like to rule out as many things as poss. before draining the boiler.

Hello Ray, thanks for your reply, running the tap at about 9litre/min gives cool water, but that is well within the boiler spec. which should give a 35 deg C rise at 12litre/min. 2litres/min. gives hot water.

Hi, My daughter has an isar 30 and over a period of a few months the temparature of the dhw is gradually getting cooler. If the kitchen tap is run at a low flow the water temp is too hot to put your hand in, but as soon as the flow rate is increased the temp. drops to almost cold. I've read...