hi, long story short.son at uni, so i have turned his drayton thermostat off on the rad,When we turn the heating on after about an hour the radiator gives out a humming vibration noise so we turn the thermo up and it stops.
But it is now humming even when the thermostat is set at a low temp
Any help would be gratefully taken.
But it is now humming even when the thermostat is set at a low temp
Any help would be gratefully taken.