I have replaced the valve housing of Drayton Mid Position Valve (MA1) it was badly corroded and jammed.
Having replaced the actuator I still seem to be getting Central Heating when only Hot water is turned on.
How can I test the actuator?
I lock the lever down and click it in place but the lever does not unlock when I switch on heating.
Is it possible it is just the motor which is duff as I believe these can be replaced?
Having replaced the actuator I still seem to be getting Central Heating when only Hot water is turned on.
How can I test the actuator?
I lock the lever down and click it in place but the lever does not unlock when I switch on heating.
Is it possible it is just the motor which is duff as I believe these can be replaced?