baseboards are not warming up

everything was working fine till
I was away for 3 days and shut off our boiler
when i came back the pipes froze.
nothing has damaged and we heated them up.
I bled air from every baseboard
but

baseboards don't warm up
circulator does not push up the water

any ideas?

Could still have frozen pipes. I had a similar problem with a 2nd floor zone and it turned out that one of the pipes had frozen in an exterior wall.

If this is a one zone system I would try purging the heating system to confirm the water is actually circulating around the entire system. There is a good forum over at ************ doT_com that is great with heating system help.(not that this one isn't good, but there are more boiler guys over on the other one that can help)