Refilling vented central heating problem? | Central Heating Forum | Plumbers Forums
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Discuss Refilling vented central heating problem? in the Central Heating Forum area at Plumbers Forums

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C

crompton

Had to change a motorized value (MV) and followed the plumbers instruction on how to do it -
turn off power supply, and main stopcock then drained system etc then change MV.

However I am now having problems refilling system - closed bleed valve on top rad and main main bleed on the system, then opened stopcock - header tank refilled.

Downstairs rads have water, but upstairs do not. No cold water going to toilet or bath. Water from hot water taps running at a tickle.

My plumber is away on holiday - what do I do now to fix the problem. can you help?
Thanks
Crompton
 
Open Vent systems can be a right PITA to refill, have you tried venting the upstairs rads with the pump running?
This may have been a job for a plumber mate ;)
 
Had to change a motorized value (MV) drained system etc then change MV.

However I am now having problems refilling system - closed bleed valve on top rad and main main bleed on the system, then opened stopcock - header tank refilled.

Downstairs rads have water, but upstairs do not. No cold water going to toilet or bath. Water from hot water taps running at a tickle.

If your plumber told you how to drain and refill the system, how come you have no cold water going into the toilet or bath? What has toilet or bath got to do with your central heating?
FYI, the two are not related. Chances are you did turn off valve feeding bath & toilet and now have an air lock, or forgotten to open that valve?
- As for the central heating/rads, drain down again and refil with mains pressure from a drain valve (should have one attached to one of the downstairs rad
- Asfor bath and basin, you may have a (now) seized gate valve. In which case you have to replace it (SORRY), OR
- You can back fill using washing machine or kitchen mixer tap.

See, it's not as easy as your plumber made out, but if you are prepared to brave it/sort it yourself, you can do it. C'mon, lets see you do it. Oh, the satisfaction is imeasurable, honest.
HAPPY NEW YEAR TO you too.
 
Last edited:
Had to change a motorized value (MV) and followed the plumbers instruction on how to do it -
turn off power supply, and main stopcock then drained system etc then change MV.

However I am now having problems refilling system - closed bleed valve on top rad and main main bleed on the system, then opened stopcock - header tank refilled.

Downstairs rads have water, but upstairs do not. No cold water going to toilet or bath. Water from hot water taps running at a tickle.

My plumber is away on holiday - what do I do now to fix the problem. can you help?
Thanks
Crompton
Hi, call another plumber in
 
open the motorised valve manually prior to refilling this time, and if possible use a drain off cock on the ground floor to refill the heating system. re the taps, refill with the hot taps open so they run before you turn them off, you can do the same with cold taps that arent mains fed.
 
doesnt seem to be much festive goodwill left here apart fm villages encouragement
 
dont know any plumbers who are working at present, I'm on holiday :)
 
I'd rather it was done right rather than him flooding his house just before new year ;)
 
You only want to see him flood his house when he tries to fill from an old doc downstairs.........and hes upstairs waiting in anticipation with his vent key
 
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