I installed a Tower 22mm 3-port mid-position valve (VAL322MP) nine months ago, now its stopped working. With both input wires live, it should drive to CH position and the orange wire (boiler control wire) should go live, but it does nothing.
I guess the actuator (motor box) can be replaced, but Tower don't seem to sell the actuator separately, or provide instructions for removing/refitting the actuator.
The Tower unit looks very similar to a Honeywell. Can I fit a Honeywell actuator to the Tower valve? The entire Tower unit costs less than a Honeywell actuator, but if Honeywell actuator is higher quality I'd prefer to fit one, IF it is compatible.
Thanks for some advice, Phil.
I guess the actuator (motor box) can be replaced, but Tower don't seem to sell the actuator separately, or provide instructions for removing/refitting the actuator.
The Tower unit looks very similar to a Honeywell. Can I fit a Honeywell actuator to the Tower valve? The entire Tower unit costs less than a Honeywell actuator, but if Honeywell actuator is higher quality I'd prefer to fit one, IF it is compatible.
Thanks for some advice, Phil.