biasi prisma 24se constant cycling

[countygardens]

Hi all,

my biasi 24se constantly cycles in either dhw or c/h modes (also when both are on)

Any ideas please?
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sorry, forgot to say,

it gets to 60c after first couple of cycles but then cuts out and re-fires every 3secs or so.

MOD
please use the edit button

 

[ChrisR]

We can be fairly safe to say it shouldn't DO that, so you need a boiler engineer. Unlikely to be anything that can be fixed by diy.

 

[PEDANTICVINDICTIVEMAN]

Make sure to wear your bike clips it' stops the diahrea getting onto your shoes

 

[countygardens]

Thanks for that but I was hoping to get some advice on what it could be. Dont intend to get involved with any gas areas of the boiler but if its anything else I am keen to learn. Have changed various parts myself in the past and had no problems with those parts. Obvoiusly this problem could be linked but it was only a temp probe and various parts for diverter valve, including dhw pressure switch which was rusty and leaking.

 

[ChrisR]

Well it could be a rogue bit of fluff somewhere critical (that you shouldn't go) or it could need a new pcb or gas valve! Sorry, it isn't possible to make any guesses!