rads cold downstairs

[ledge]

hi ,I have just had my boiler fixed by Worcester bosh ,the engineer put in a cleaning agent and told me to leave it a week and drain system,when I drained down system and refilled all radiators upstairs are fine but the ones down stairs are all cold,have I got an airlock or could it be something else,

 

[Armo74]

Did you bleed the downstairs rads first?
What's the pressure reading?
Have you tried turning off the upstairs rads to see if the downstairs ones heat up?

 

[ledge]

yes did the downstairs first ,pressure is 1 and a half bar and tried turning off upstairs rads ,but no change,is there anything else I could try .

 

[gigz]

Yeah, get worcester back. Your pump could be knackered. Have you bled the pump ? Close all the rads but one at a time in the meantime.