K
Keeno
I have changed TRV inserts but cant bleed the air from the system as the bleed valves are stuck shut. I have tried brass keys which present a round shape with square corners but seem too big, and aluminium keys which are more square but they break. I also tried a circular cutting tool to make a slot for a screwdriver but still wont budge. If I can find the make of rad, that may help. Many thanks. Keeno