If there no flow the heat won’t go.

The building is a three story walk up and this apartment is on the first floor but far away from the boiler room. I cannot get the heat to flow through the baseboards. I have checked the voltage at the thermostat (26v) the zone valve operation is good. I even checked the internals. The valve was replaced in 2020. There has been a hose bib installed and I am able to isolate the baseboards from the rest of the building. If I run water through the hose bib I get hot water but I cannot get the water to flow on its own. I am unable to access the boiler room as Strata has their own plumber. (Don’t get me started about Strata) 

I suspect it could be the heating pump. But I have never had an issue like this on the first floor. Seems odd. Any ideas or other suggestions .