ALPHA CB28 No central heating ?

[Grant Vaughan]

Hello.
I have an Alpha CB.28 which is giving no heating but hot water.
With the DHW Flow switch fitted I get Hot water only
If I remove the DHW flow switch and take it of from the cable it's attached to I get central heating but No hot water.
I've ordered a new Flow switch to try and will update this if it works.
My question is . is it the flow switch or a problem with the diverter valve ?
Also whilst CH is running with switch removed Timer doesn't appear to work is this to be expected ?

 

[picasso]

I would strongly suggest you put the boiler back together and get someone that knows what they are doing to fix it, you are going to spend more than a visit from a pro guessing what bit to change next.

 

[ianmcd]

Its not the flow switch its the diverter , stop removing the flow switch you will damage the boiler