glow worm boiler lockout

[topbanana]

been round to a mates this morning after he put a nail through one of his heating pipes.
repaired the leak but then the glowworm 30 hxi condensing boiler [conventional system] wouldn't work.
it would fire up, then start flashing F9.
vented all points including pump, still no joy. any ideas please.?

 

[kevplumb]

from mans ins

Is F9 displayed?YES
SENSOR FAILURE
• Check o/h stat.
• Check thermistor.
• Check cables.
• Faulty main pcb

 

[topbanana]

soory, should have said, got all that info- though i beleive those are for f9 not f9 flashing.
haven't changed anything or affected anything by the leak other than i can hear a lot of air trapped and gurgling as boiler fires up , then clicks off after 5 secs odd.

 

[ollski]

have you reset the overheat stat in side the boiler at the back on the top left hand side?...small push button reset on the middle of the red stat.

 

[topbanana]

thanks ollski. my friend found it b4 i got back to him.
nothing in the manual.-pain in the bum.
thanks again.