2006-12-02 16:28:29 · 6 answers · asked by Ice Box 1 in Home & Garden ➔ Maintenance & Repairs
Steam or hot water?
One pipe or two?
With steam in a two pipe system There is a trap at the bottom.
This may stick & the radiator can fill with water & then not get hot.
With steam in a one pipe system there is an air vent that lets the air out when the steam enters & when it cools it lets air in to let the water return to the boiler. If this air vent becomes stuck either open or closed the radiator don't work right & the air vent needs to be changed.
In a hot water system there is a little bleeder valve at the top end of the radiator that may have a slot that you can turn with a screw driver or a small square nut that you can turn with a little key tool.
You just open the valve a little & let the air out when you get water all of the air should be out & you close the valve. Have a paper cup with you to catch the water that comes out before you get it turned off. (If the little valve has been painted over you may need to look for the little hole in the side of the valve where the water would come out. just poke it out with a pin)
If needed the valve can be replace but this means the pressure must be off, the pump must be off, & the fresh water supply has to be off before you remove the valve. You may be able to change it with out draining the boiler but some water will leak out.
If this is the highest radiator that isn't much of a problem, but one on a lower floor means a lot of water could leak out if you weren't careful.
I hope this works for you.
2006-12-02 16:53:06 · answer #1 · answered by Floyd B 5 · 0⤊ 1⤋
ok try this .water tend to come in from the left and leaves o n the right . you got to turn the valve to open it . and let some air out ,till you get some water comeing out of it ,do this very slowly , it will be hot and under pressure,use care should take about 3mins and then try again in a week ,you system will work much better, i belive its a half inch pipe, ,even sq looking ,in the uk
2006-12-02 16:36:02 · answer #2 · answered by Anonymous · 0⤊ 0⤋
about the 99th time this has been asked here...go to highest point in system..on mine I use a small flat head screwdriver...(some here say they have a special key or wrench I dont) ,make sure boiler is RUNNING and warm...loosen up screw till you have a steady stream of water coming out...(bring bucket with you to catch the water) proceed bleeding all radiators on that floor and go down to next..and continue this till all done.....THEN go back to first one are REPEAT this all over again to make 100% sure all air is out...this system works every time for me..
2006-12-03 01:25:56 · answer #3 · answered by Anonymous · 0⤊ 0⤋
There should be a nipple near the bottom. Usually on the same side as the dial to advance the heat.
2006-12-02 16:30:53 · answer #4 · answered by HDGranny 4 · 0⤊ 0⤋
you turn or open the old fashioned bleeding valve
2006-12-02 16:37:06 · answer #5 · answered by Anonymous · 0⤊ 0⤋
car radiator?
shouldnt there be a tap on the bottom you can open?
2006-12-02 16:31:07 · answer #6 · answered by sennachie1973 5 · 0⤊ 0⤋