OP
- Reaction score
- 14
Hi
Thanks for sticking with us. Ok, to avoid confusion I will answer each part as per order of your posts (hope that makes sense).
1. When you say stat wired on the old 240v side all I have done is removed the apparent faulty wireless RF and replaced it for a honeywell mechanical stat. The connections in the boiler interface housing remain the same which are:
3 core pvc flex to brown - Live, Blue - Neutral, CPC, 3 core + earth doubled with Live flex to brown, Neutral flex to Black, terminal R with Grey (terminal F empty).
2. The 24v link has been reinstated.
3. Pressing and holding mode button only brings up a flashing rad symbol with 'off' displayed.
Taking all above into consideration the boiler still won't provide C/H. I've tested the pcb at the electrical test point and am getting juice.
I cannot for the life of me understand why there is no facility to hold the mode button to either A) set the heating temp or B) get it to actually display 'on'.
A google search does not bring any hint of why the mode button behaves this way.
It's as if the boiler is sat in standby and waiting to be call on for heat.
My main concern is actually replacing the honeywell stat for a working reciever won't solve the problem.
Does this boiler only work with LV exterior controls?
Could this quite possibly be a faulty diverter valve?
Thanks for sticking with us. Ok, to avoid confusion I will answer each part as per order of your posts (hope that makes sense).
1. When you say stat wired on the old 240v side all I have done is removed the apparent faulty wireless RF and replaced it for a honeywell mechanical stat. The connections in the boiler interface housing remain the same which are:
3 core pvc flex to brown - Live, Blue - Neutral, CPC, 3 core + earth doubled with Live flex to brown, Neutral flex to Black, terminal R with Grey (terminal F empty).
2. The 24v link has been reinstated.
3. Pressing and holding mode button only brings up a flashing rad symbol with 'off' displayed.
Taking all above into consideration the boiler still won't provide C/H. I've tested the pcb at the electrical test point and am getting juice.
I cannot for the life of me understand why there is no facility to hold the mode button to either A) set the heating temp or B) get it to actually display 'on'.
A google search does not bring any hint of why the mode button behaves this way.
It's as if the boiler is sat in standby and waiting to be call on for heat.
My main concern is actually replacing the honeywell stat for a working reciever won't solve the problem.
Does this boiler only work with LV exterior controls?
Could this quite possibly be a faulty diverter valve?