I got nagged this morning about the hot water being tepid.
I have checked the boiler and its off, no power no lights, nothing... Its a Potterton Promax System 24 HE Plus.
The controller (Honeywell ST6400C) is on and set to supply but it seem that the boiler is not seemingly getting any power. I have but a meter across the live supply in to the boiler and nothing.
I don't think my controller is supplying power, I have checked the power across the live feed (marked L) and the grey wire on terminal 3 (I believe this is the HW on signal) and again, nothing.
To bypass the controller and check the boiler is still working, can I short L to terminal 3? I assume that's all the controller does (albeit on a timed basis)
I don't want to spend on a new controller only to find its not the problem...
Any advice or help much appreciated...
I have checked the boiler and its off, no power no lights, nothing... Its a Potterton Promax System 24 HE Plus.
The controller (Honeywell ST6400C) is on and set to supply but it seem that the boiler is not seemingly getting any power. I have but a meter across the live supply in to the boiler and nothing.
I don't think my controller is supplying power, I have checked the power across the live feed (marked L) and the grey wire on terminal 3 (I believe this is the HW on signal) and again, nothing.
To bypass the controller and check the boiler is still working, can I short L to terminal 3? I assume that's all the controller does (albeit on a timed basis)
I don't want to spend on a new controller only to find its not the problem...
Any advice or help much appreciated...