Hi all - hoping somebody can help with this problem - apologise in advance if i garble on a bit.....
So, i have a Rinnai boiler, pilot light lights fine.
When I open the hot tap in the kitchen sink the boiler fires up and warm water comes out - this used to be hot, but now only warm.
When I open the hot tap in the bathroom or switch on the shower - the boiler doesn't fire up at all. The shower used to fire the boiler fine and the water would get really hot and stay this way with the pump out running, after a while, this would only stay lit and hot with the pump switched off - now nothing.
I recently had a leak from a broken kitchen tap
The water pump used to periodically sound like it was starting up for no reason - every few hours it would grind over, but this has stopped since I replaced the kitchen tap.
any/all help and advice appreciated.
many thanks!