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The manuals says If in time a reduction in hot water occurs, the likley causes may be impurities caught in the domesic hot water flow switch fliter or lime scale deposited in the domestic hot water heat exchanger. it is advisable to have the applience cleaned by a authorised sevice engineer...

I've looked at the d.w.h heater exchanger and it looks clean as a whistle. Nothing in the manual about cleaning.

Heat exchanger looks clean! Waiting for it to cool down. Would getting the hover in there be a good idea?

blocked plate exchanger, is this an easy job or does it have to be done by corgi guy?

Warm temp all over the place not consistant.

Thanks for the help. when the rads are hot or the heating been on for a while I get hot water. If the system is cold like on a morning or coming in from work the hot water is cold at best warm. I'm waiting for the plumer to come and service the boiler will give him a ring as he is waiting for...

Any thoughts ?

Hi there I'm having trouble with my hot water, I'm struggling to get the hot water piping hot for a bath. I have a biasi 24s combi boiler. The c/h is great and really hot. I have tried messing with the cold water input backing that off slightly. Normally the hot water would be cold but if you...