2nd Floor Radiator Get Air But No Water

If there is no water then that means the pressure may be too low and is not pushing the water up high enough to reach the second floor.

2nd floor radiator get air but no water. I did find the lines going upstairs are 1 2 while the lines going to the ground floor radiators are 3 4. When this happens it reduces the radiator s ability to heat effectively. 4 on the 2nd floor bled them. As a total layman my guess as to why this is is that there s so much air in the radiator the pressure isn t enough to push it.

I re tightened the screw left it for a few hours tried again. Almost every radiator on the 2nd floor bled air for about 15 seconds but water never came. If the heat in your home isn t circulating well or the bottom portion of your radiator is warm while the top portion is cold there may be air trapped inside the radiator. While the system is running hot get the rad key and gently undo the end screws at the top of the rad.

Try bleeding the air with the circulator running. All heating system seems to be working ok except for one radiator on the 2nd floor boiler is in the basement. The radiator doesn t heat up fully despite both valves being fully open and there also seems to be a temperature difference across the radiator with the bottom being hotter than the top. Now that it s back on i feel some warmth in the radiators upstairs but they are generally pretty cold.

If the system is not filling with water after you bleed the air out there may be a closed valve on your fresh water make up for the system. 3 on the main floor these all work great. Typically there is also an auto fill valve that will add water to the system to the desired pressure. The valves have been.

No water came out. My brother s house had the same problem. If you are not too familiar with the controls then you should get a pro. I wasn t sure what was going on so i decided to turn everything back on and see if it would refill properly.

I bled them until water came out of the valve. I have 7 radiators. Some of them had the air hissing out at first but after a few seconds the hissing stopped. Do this with a towel ready until water seeps.

This year i turned on the system and non of the radiators on the 2nd floor are working. I ve been doing this two or three times a day for a few days get a bit of air coming out each time. Air in the rads. You should hear air escaping.

We can conclude that this is a hot water heating system not a steam heat system because there is no automagic air vent that we find on steam radiators and second the radiator control valve includes an air bleeder that nut on the side of the valve body. In our photo at above right you can see not only the radiator control valve but more.