My Honeywell boiler as of today is presenting me with a F04 (F4) error. I've replaced the actuator with a brand new one however this has not resolved it.
From what I recall the actuator should receive power and move to control the flow of water; however I don't think it is actually getting any power. It is plugged into the base unit with the cable (that looks like a telephone cable) however it makes no noise nor moves by itself.
Some people suggest that I should remove the actuator and "check that it drives for at least 10 seconds". What exactly does this mean? I take it that I should remove the actuator from the 3-port valve and whilst still connected by cable to the base unit I should hear the motor inside it run. If this is the case it is not showing any sign of power. Is there a fuse for the power to the actuator?
The Honeywell Smartfit W4672A Base Unit definitely has power (or at least power to some of it?).
From what I have read the system should be able to function without the actuator in place - I just need to twist the brass shaft into either the A or B position. I've tried this however after turning the system on and waiting about 15 seconds the hotwater stops flowing and I get the F04 error again.
I think the actuator is fine as I have a brand new one and the paddle moves freely.
Another post suggests that the F04 error can be "a fault in the control box not detecting the resistance on valve" - how do I resolve this issue?
Desparately wanting some hot water and a resolution!
From what I recall the actuator should receive power and move to control the flow of water; however I don't think it is actually getting any power. It is plugged into the base unit with the cable (that looks like a telephone cable) however it makes no noise nor moves by itself.
Some people suggest that I should remove the actuator and "check that it drives for at least 10 seconds". What exactly does this mean? I take it that I should remove the actuator from the 3-port valve and whilst still connected by cable to the base unit I should hear the motor inside it run. If this is the case it is not showing any sign of power. Is there a fuse for the power to the actuator?
The Honeywell Smartfit W4672A Base Unit definitely has power (or at least power to some of it?).
From what I have read the system should be able to function without the actuator in place - I just need to twist the brass shaft into either the A or B position. I've tried this however after turning the system on and waiting about 15 seconds the hotwater stops flowing and I get the F04 error again.
I think the actuator is fine as I have a brand new one and the paddle moves freely.
Another post suggests that the F04 error can be "a fault in the control box not detecting the resistance on valve" - how do I resolve this issue?
Desparately wanting some hot water and a resolution!