hot water probs

[nigelh]

pump fed system with cylinder

hot water is only getting lukewarm all of a sudden over night on whole system

any ideas or solutions

many thks in advance

 

[GQuigley67]

more information would help

 

[AWheating]

pump feed? secondary circulation?

 

[nigelh]

fully pumped with motorised valve and cylinder thermostat fitted
if that helps

 

[AWheating]

what hot water system do you have? open vented, unvented, thermal store, solar for example. do you have a system blending valve? is it a y plan, s plan ?

check stats on cylinder and boiler are set correct, have you tryed the heating? if that gets to temp you can probably rule the boiler out and look towards the controls.