I live on the 14th floor of a 30 story apartment building and so far, I’ve been bleeding my radiators myself.
This usually worked and after bleeding I had a fully functioning radiator, 100% filled with water.
However, last time I tried bleeding, it would only fill up to 25% of its volume, it’s like there’s no pressure in the circuit.
Am I doing something wrong?
How do you know how much it’s filled?
Also, hot water heat works differently than steam, and many steam systems have been converted to hot water, so it’s not easy to know just by looking at a radiator.
As other people have said, let the maintenance folks handle it. They know the system.