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All sorted! Air lock was in pipe from locksheild valve.

water is ok in colour, slight grey tinge but nothing major. Thinking of taking rad off and open trv with a bucket underneath to see if i get water out, the pipes to the rad are cold so i think the airlock is in the circulation system. No drain valve on this rad.

turned all trv's to 0 apart from hall rad. Pump on full speed and left for 30 mins. No luck though! Any more ideas????

will give it a go tonight. Do i just need to turm TRV's to 0 position or should i close locksheild valves as well????

Hi, Just had a new bathroom fitted which included a shiny new towel rail. Since then however the hall rad is stone cold! I made sure both valves were open which they were. I then bleed the rad but no air came out, just water. checked the TRV pin but that is moving freely. Both pipes to it are...