Bled radiator while heating was on and now boiler pressure is too low to ignite

[Participant]

Hello ocuk

I made the rookie mistake of bleeding a radiator while the heating was on. So I come downstairs feeling pretty chuffed with the amount of air I'd let out, before realising that the heating wasn't working. Tried resetting the boiler and it fires for a second before conking out. Pressure gauge is reading 0.25 bar.

I've read about letting more water into the system, but when I open the stopcock valve on the cold water inlet to the boiler, it just spews water out of a nut on the side.

Any help is gratefully received.

 

[Participant]

fourstar - hmmm sort of, except those two valves seem to be on different pipes:



The black valve I've tried opening and closing, likewise the little blue one above it. I've read about filling loops, except mine doesn't seem to have one?!

Glaucus, I have the physical manual in front of me. It just says open the fill valve.

 

[Participant]

Nope . Have now connected the two pipes with a shower hose. Wish me luck.

 

[Participant]

you are joking right

the government banned home owners like you from doing there own diy for a reason

Well as with everything, you have to pick and choose which advice you heed on the Internet. And thankfully for me, I ignored yours.

With a bit of ptfe tape on the threads, the shower hose worked perfectly. I connected the two pipes with valves on with the hose then slowly turned the black valve. Pressure started rising slowly and our radiators are now red hot once again! So thank you so much everyone that isn't haze; I actually love this new forum section.

Ps it's a ravenheat csi120 boiler. Came with the house we bought in December. Too small for the property by all accounts, but it's done a great job so far. Just for some reason there was a tonne of air in the towel heater in the main bathroom.

Anyway, all sorted now and thank you again!

 

[Participant]

The filling loop should be disconnected when not in use according to the water bylaws, however total removal and hiding it is unnecessary.

Good thinking with the shower hose.

I would put a stop end on the check valve, as if the washer goes on it, it will pour out, and that usually happens when you are not at home.

I will do that. And I will also get a proper filling loop pipe. Though I suppose if I leave the filling loop connected I will a) never have to worry about the valve breaking and b) be able to instantly repressurise the system if required.

System is now reading 2 bar with heating on full pelt. Towel heater in second bathroom is a slightly less boiling at the top so I guess I'd better bleed that too!