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Dear All, Just to let you know I changed the main PCB this morning and once set up worked perfectly, ramping up to 10mbar and staying there until temperature on the potentiometer dial reached, then modulating down as it should. Thanks for all your advice. A real shame that I couldn't...

Thanks to you all, I have ordered a new PCB and will go back this week. I'll ring vokera today and ask them if there is a problem with the electrode. Tony - I did email admin like you suggested, with my registration details but have not received any response yet. does it take a while, or...

Thanks DP, Yes I have checked the burner pressure, when you demand hot water the burner ignites to full flame and then modulates down to 2-3mbar straight away. I have also checked the incoming supply and i'm not getting a proper rise. I am starting to think that the vokera technical support...

Yes CH is perfect.

Thanks Tony, I have now done that, so will hopefully get access details soon. I also spoke to Vokera technical again and was advised that is most likely to be the PCB. The support person told me that the main PCB is probably faulty only permitting a maximum to 38 degrees, modulating down...

Thanks, I suspected the venturi, but the boiler ramps up to full flame on heating and also when I hold a spare thermister to the connection externally. I just cant understand why it wont do it when i reconnect to the thermister in situ. Tony - how do i get to the combustion chamber...

I am gas safe registered and have a problem with a Linea 24 which has left me stumped, even Vokera technical can’t seem to help on this one. The Linea 24, provides heating well but only provides luke warm water – The display stops at 38 degrees. When DHW is selected it fires and the gas valve...

Hi, I am new to the forum, I am a CORGI registered engineer, but have not worked on a Puma 80e before yesterday, I have searched the forums but have some specific questions that I would appreciate some advice on before I go back. Symptoms: - Prior to me going there: Central Heating...