ZAzone valve it only has two positions A,B mid position . Drayton Motorised valve stickingpostsAug 2012Heating constantly on – Drayton zone actuator problem? It’s a Drayton ZA and roughly twice a week, it doesn’t switch off, either. Boiler guy out again, says the heating actuator switch is sticking causing . I stuck with drayton as I can just swap the actuator in a few mins.
I have this thing in my pipework called a DRAYTON ZAactuator. A Drayton ZAzone valve actuator is dismantled to see how it works and what is inside.
I have a Drayton ZAActuator that controls my hot water. It sounds like you have a motorised valve sticking. It is a Drayton Zone Valve Actuator (Actuator Code ZA5) and is connected to a Drayton Tank Thermostat, . When the valve is stuck open, is there power on the brown wire?
Motorised valve faults can be due to a seized valve or a faulty actuator. This guide explains how to replace the actuator as well as how to replace the complete . DO NOT ATTACH THE ACTUATOR UNTIL THE VALVE BODY HAS BEEN.
