Central heating stopped working - stumped!

[IND_Nick]

Is the boiler still firing for hot water?

 

[TonyK1]

If it's wireless the power cut could have unpaired the reciever/transmitter. Google operating instruction for your programmer and look how to pair them up.

fraid not, it's just a standard wired Siemens one. I'll assume it's fine!

Is the boiler still firing for hot water?

Yeah hot water is absolutely fine

 

[Masood]

I've also manually opened the central heating valve... and i get a tiny amount of warmth from the upstairs rads.. but that's it

Did you open the CH valve whilst boiler was running on hot water demand?

 

[TonyK1]

Did you open the CH valve whilst boiler was running on hot water demand?

Yes, I 'think' I only get a bit of hot water to the rads when the boiler comes on for the hot water.

Is that pointing towards a knackered 3-way valve? (power-cut related?!)