blowing fuses

[willjo]

recently had a new boiler fitted been ok for 3 months still heats water ok,
but when i put heating on the 3amp fuse keeps blowing,, sometimes straight
away if the system is fairly hot or can last for hours any ideas

 

[JohnD]

Look for signs of a water leak getting an electrical part wet. This might be the pump or it could be inside the boiler.

You will probably need a heating engineer if it is not something obvious and simple. If it is new call back the installer.

 

[slippyr4]

is it a combi boiler? or do you have a water cylinder?

JohnD: there's a clue here about how apparently HW works, but heating faults.

 

[sm1thson]

call back the installer.

should still be under warranty and shouldnt cost you anything to get it fixed.