Recent content by dave21

Cap is open on valve.

Ok I meant that when i took the nut out to bleed the pump it was still tuning as it was on the overrun so I 'm fairly certain it's turning. Sorry I didn't make that clear. So if I check this expansion unit with a tyre pressure guage. What am I looking for and how do I remedy whatever result I...

You say turn pump by hand.... I know the pump's whizzing round as I took the nut out to allow any air out and water dripped out. How do i check the air pressure in the expansion unit? I take it you don't think the new automatic air vent would be faulty? Presumably they are quite a basic unit?

I just replaced the automatic air vent on my boiler that was leaking. Easy enough job..... Once done, I noticed the water pressure was dropping all the time. It was clear that it was the pressure relief valve leaking. I replaced this...again very easy. Now the boiler fires up for about 5...