Boiler pilot light wont stay lit - HELP!

[CHIEF]

Ok come down this morning to find my heating off, i have a old style Baxi boiler (i know, i know) So i went outside to find my overflow covered with snow.

I cleared this and came in and lit the pilot light - it stayed on, anyway i told the GF what to do if it goes out and like a dick pressed the gas release button which promptly cut off the pilot. Now i have tried and tried and i cant get the pilot to stay lit.

Rung a friend who said i need to give it 10-15 mins or so in case the gas has built up and prevents this from staying lit but i just cant keep it lit. Its not (or shouldn't be the gas valve as i replaced this a couple of years ago.) but like i said it was fine this morning i only had a problem when i knocked it off again.

Any help greatly appreciated.

I'm fffff 'kin freezing.

Cheers guys.

[CHIEF]

I've looked mate but am struggling finding it as i dont know the exact model number.

[CHIEF]

Well at least the Thermocoupler isn't expensive, i just need a decent (and honest) engineer to sort this for me now.

Thanks.