ferroli modena 80 e only firing up for 10 sec

[frank900]

had it 6 years not firing up when demand for heating or hot water but does come on for intervals of 10 sec every 5 mins or so the burner light trys to come on but just a flicker it happened before christmas but seemed to rectify itself can you help thanks. bled rads,took air out pump cleaned inside,checked connections etc pressure ok

 

[twgas]

do fan and pump run when there is a demand?

 

[frank900]

yes fan and pump run as normal

 

[twgas]

next thing to check would be APS

 

[frank900]

dont want to sound like a nugget but whats aps

 

[twgas]

I believe if you dont know what it is you can hardly be competant to fix it so my next advice would be to call a boiler repair man..

 

[frank900]

located aps checked wires seems ok

 

[frank900]

mick if your still on the dhw inlet was sweating gave it tighten that seemed tohave solved the problem thanks