Greenstar 27 CDI
9 radiators
8mm microbore
floors, ground, first and second all heated with rads
ONE of the these radiators will NOT heat. Its probably the futherest away from the boiler (sited on 1st floor)
Radiator has been removed, lockshield valves (2 of, no trv) have been tested and high pressure on both flow and return.
When radiator is filled, it fills quickly and with hot water. But from then on it does not circulate back to the boiler?
Tried locking off ALL RADS except the trouble one, but still it did not heat up?
I can't understand what is the problem?
Let me know what you think?
9 radiators
8mm microbore
floors, ground, first and second all heated with rads
ONE of the these radiators will NOT heat. Its probably the futherest away from the boiler (sited on 1st floor)
Radiator has been removed, lockshield valves (2 of, no trv) have been tested and high pressure on both flow and return.
When radiator is filled, it fills quickly and with hot water. But from then on it does not circulate back to the boiler?
Tried locking off ALL RADS except the trouble one, but still it did not heat up?
I can't understand what is the problem?
Let me know what you think?