I have a Glowworm Swift Flow 80 that recently had a new fan due to the whole thing failing. Fault was still intermittent so a plumber came and had a look and said that the AAV was missing a rubber seal, so allegedly fitted one. It then turned out that the PCB needed a few dry joints sorting, which I found and soldered myself. Since then, the system is working, but when on, the pressure very often gets up to 3, and when cold, the pressure very often goes to 0.5. I have inspected the AAV today, thinking if it always worked before without the rubber, then why does it need it? It now turns out that the guy just wegded a load of that white thread seal tape stuff inside the cap and screwed it back on, covering up the small hole on the side. Now if I take the silicon out, the water just ****es out of the AAV, so for now I have had to block it up again.
Would I be right in thinking that this fix is wrong, and that the AAV needs changing because it's leaking? And how easy is it to do this??
Would I be right in thinking that this fix is wrong, and that the AAV needs changing because it's leaking? And how easy is it to do this??