2007-12-22 13:14:36 · 6 answers · asked by Anonymous in Home & Garden ➔ Maintenance & Repairs
Just a thought . . . If you have done the bleeding, then you must have had water come out and the rad fill up yes ? . . . the water is cold yes ? . . . this can't happen basically as the water should be circulating through the system and you can't have hot water in some parts and cold in others. I know you are not an idiot but check this first . . . make sure that both feed valves to the rad are open to allow the water to circulate. Check also that the combi pressure is at 1-1.5 to when cold. If the rad is an upstairs one, then it will be the last to get filled in the cycle (it may be the last one in the cycle anyway) . . . when you bleed it, it will transfer water from the other ones and they in turn will need bleeding, otherwise there will be air blocks preventing the water to circulate. My suggestion is Check combi pressure, increase if necessary, bleed rad again, bleed all other rads, check combi pressure again, as it will go down as you bleed through the cycle. You may have to increase pressure 2/3 times before the system and all rads are full again. When all full the combi boiler may rumble a little as the new aerated water is automatically evacuated by the combi boiler over a period of a few hours. Hope this helps and if not, nothing more I can suggest.
2007-12-22 20:17:17 · answer #1 · answered by Time4AcuPPa 4 · 0⤊ 0⤋
Purging is using high pressure to flush out the crud that builds up in a system. It might be tricky, as you need to find the (hopefully) built in valve where the the water re enters (or re curculates into) the system. Failing that, you need to go to each bleed valve in the system, and set up a hose to flush it in stages.
The valve is much bigger at the end. The bleed valves do not allow much volume to flow.
This might be a job for a professional, as done properly can save you a lot of heating $ and possible trouble.
2007-12-22 15:23:03 · answer #2 · answered by edjumacation 5 · 0⤊ 0⤋
i never saw part one !..so I'm guessing you have no heating ..if you have ..ignore this ...bleeding and purging are the same ..but with a combi system if you bleed the rads then you have to replace the water you have lost ..and as the system works on mains water pressure ..then you have to re pressurise the system with the built in loop ..and bring the pressure up to what it was set at before
2007-12-22 21:11:31 · answer #3 · answered by boy boy 7 · 0⤊ 0⤋
Make sure the make-up water valve is open and the valve to the radiator is also open, then bleed the air out of the rad at the bleed (purge port). If this is done and the thermostat for that rad is working, you should have heat from that rad.
2007-12-22 14:36:14 · answer #4 · answered by Sonny 4 · 0⤊ 0⤋
purging is another word for bleeding except when you are purging your purging the whole system when you are bleeding it's just one radiator
2007-12-22 13:58:25 · answer #5 · answered by Fred S 5 · 0⤊ 1⤋
New home? All other rad's work?.. Is the bugger piped in? Any water at the connections? KISS. Keep it simple...
2007-12-22 13:47:46 · answer #6 · answered by sjwhvac 3 · 0⤊ 2⤋