Clear water coming out of the bleed for a few seconds doesn't tell you if the system is clean or not. A full drain down will give you some idea along with taking a few radiators off.
I like to put my flushing machine on and see what I get out of the system, if it is clean I stop, I try a...
You can test to see if the diverter head is getting the correct voltages from the board, it's pretty simple to do but if your not confident with a multimeter then best left to someone else. You will however need a RGI to change the board on your boiler as it has gas related settings!
Well great so is every boiler company going to join? Then when someone has a problem they all go after the repair work! Is it not bad enough they try to steal the servicing work from us once we have fitted one of the **** boxes in the first place!
I think that particular pcb works on several different Ariston boilers, if it is not set up correctly it can cause problems, also it is recommended that the domestic hot water flow sensor is changed at the same time as the pcb. The domestic hot water flow sensor is in a small black plastic box...
It doesn't sound like your close to getting it working at all!! My advice is get a registered gas engineer to fix it for you! You've thrown parts at it, stop being tight and pay someone to fix it!
if he is spraying his joints straight after soldering it will be a problem, the joint should have cooled sufficiently first, I never use a spray, just a slightly damp soldering rag
is the valve fitted the correct way round? check the arrow on the side of the valve it should follow the direction of the flow pointing to the return.
Does your valve make a screaming sound? these valves need setting up, if the valve is not set correctly it can scream like a biatch. He...