central heating

[mickcoulson]

hi.. ive just moved my boiler ( baxi wall mounted balanced flue ) from kitchen to garage. the boiler is firing up ok when heat is demanded. i am getting hot domestic water, but my central heating is non existant. the radiators are cold, i've bled them all, the pump is working, the motorised valve is working. i've tried turning all but one rad. off and just bleeding that one. could i have got the pipework mixed up ? i have used plastic pipe and the run of pipework is longer than before. could i need a more powerful pump ?
any help appreciated
mickcoulson

 

[mogget]

I hope the gas isn't done in plastic too!

A few metres of pipework won't affect the pump much. Make sure you have the pump on the highest setting while fault finding.

Airlock is a possibility - do any high points on the pipework have air releases?

Otherwise it's likely to be either a pipework or electrical error.

As the boiler works for hot water, it's unlikely that the fault is within the boiler.

 

[mickcoulson]

I hope the gas isn't done in plastic too!

A few metres of pipework won't affect the pump much. Make sure you have the pump on the highest setting while fault finding.

Airlock is a possibility - do any high points on the pipework have air releases?

Otherwise it's likely to be either a pipework or electrical error.

As the boiler works for hot water, it's unlikely that the fault is within the boiler.

yes there is a vent pipe i have bled that , no i havn't done the gas in plastic, don't think it's electrical, it must be the pipework

 

[holty]

silly question have you turned the isolators on at the boiler,if turned off,have you also disconected any other wires than the mains ie room stat also are you corgi reg as it wouldnt matter anyway

 

[gas4you]

If you lock the motorised valve in the manual position and turn the HW on, do the radiators get hot then?

Have you a 3 port or 2 2 port valves?

 

[mickcoulson]

If you lock the motorised valve in the manual position and turn the HW on, do the radiators get hot then?

Have you a 3 port or 2 2 port valves?

thanks a lot but it's sorted / return flow to wrong pipe.