Right, new flow switch fitted and still no hot water/boiler not firing when hot tap is turned.
Removed TMV and checked for scaling, seemed fine.
Removed heat exchanger and checked for scaling, seemed fine too.
Water pump engages when store hot water is engaged, so don't know what else to...
No, I don't have any LEDs on the front. Gonna get the wife to help me test flow switch today and report back. She can turn the hot tap on while I listen hear if flow switch clicks.
EDIT: Just did test, switch does not click or make any noise at all when hot tap is engaged. Tested it a few...
Okay, have another problem with my oil boiler: central heating works fine but no hot water. Boiler fires when CH is engaged, but doesn't fire when hot tap is turned on. I'm thinking it's likely to be the flow switch, but is there a test I can do to confirm this and isolate the problem?
Right! That's it, 'cos the PRV fitted has no port to connect anything to. So I guess there's nothing I can do except replace the PRV?
Now I have a new problem: no hot water. Central heating works fine and boiler fires as normal, but won't fire up when hot water tap is on. I'm thinking it's...
Hi, hope this is posted in correct place, my apologies if it's not.
I have two boilers plumbed into my central heating system. One is an LPG boiler fitted inside, other is gas-fired grant vortex condensing combi 26 boiler which I have in a brick shed outside. Both can be isolated by valves to...