home Fix label Heating label_important Home Heating Systems category Potterton

potterton flamingo 50 heating wont stay on to reach the temp ?

when i switch my boiler on it fires up normal but when all the rads get hot it turns off and wont come bk on again the therm is on full at 25 but the heating never gets to 25 the hot water is working normal but the rads just go cold again can anyone help ??

steve, September 2008

home Fix label Heating label_important Home Heating Systems category Pottertondone

Quote pump six months old should still be in guarantee

o, October 2008

so it must be the pump and not the thermostat

steve, October 2008

i removed the large chrome screw from the pump when i do this the spindle starts agian and the rads heat up! do i need a replacment pump also the water in the pump is not really dark or black colour ..

steve, October 2008

You say it is not pumping water when hot, when that occurs remove large chrome screw and check the spindle inside is spinning you can use a small screw driver to release but do not use to much force could damage spindle, be mindful with hot water spillage and any electrical connections. Pump could be jamming because the system is sludged the sludge can work into a paste that is enough to seize the pump when hot.

o, September 2008

the pump was replaced about six months ago its a grundfos could i open or test the pump myself ? or get a relacment pump installed . steve

steve, September 2008

Replacement pump. Either windings breaking down or sludged

o, September 2008

the pump is still on as it makes a slight humming noise and gets very hot but is not pumping the water too the rads

steve, September 2008

When the rads go cold and room stat turned up is the pump still running

o, September 2008

its a gravity system

steve, September 2008

Need to know type of system is it gravity or pump primary