I'll provide as much info as I can:
I have a pressurised central heating system running 8 radiators. All have TRV's fitted although now we have a room thermostat they are all run fully open. The radiator furthest from the boiler and in the coldest part of the house never warmed up last winter.
What I have done so far with no success.
I bled it. Removed it and flushed it out. WD'd and tapped TRV pin with hammer. Removed it again, this time when I replaced it I opened the TRV side first an no water flowed into it. Closed this side and opened the lockshield side which did allow water in.
I then unscrewed the nut between the TRV and the incoming 15mm pipe expecting water to hiss out but there was no pressurised water.
All the above leads me to ask. What way should the water be flowing into the radiator ? If from Lockshield side then it may just be that my TRV is stuck solid closed. If there is supposed to be a pressurised flow into the TRV side then I'm stumped.
I have a pressurised central heating system running 8 radiators. All have TRV's fitted although now we have a room thermostat they are all run fully open. The radiator furthest from the boiler and in the coldest part of the house never warmed up last winter.
What I have done so far with no success.
I bled it. Removed it and flushed it out. WD'd and tapped TRV pin with hammer. Removed it again, this time when I replaced it I opened the TRV side first an no water flowed into it. Closed this side and opened the lockshield side which did allow water in.
I then unscrewed the nut between the TRV and the incoming 15mm pipe expecting water to hiss out but there was no pressurised water.
All the above leads me to ask. What way should the water be flowing into the radiator ? If from Lockshield side then it may just be that my TRV is stuck solid closed. If there is supposed to be a pressurised flow into the TRV side then I'm stumped.