So instead of only turning the radiator off or on, you can control the temperature on each radiator individually. Lockshield Radiator Valves Lockshield radiator valves connect to the radiator and control the amount of water that flows out of the radiator and into the return pipework. It also ...
Helpful comments on this video: Partially blocked can be harder to diagnose it may also stop heat from locking up a viscous fan causing a secondary symptom. Check radiator is hot all over the face (turn engine off). If any cool areas then your radiator is partially blocked. Hot water cann...