I have a Corvec Britony II water heater that lost it's pilot light during the recent high winds and now fails to relight. I bought a thermocouple some years ago as I know they eventually fail in anticipation of this happening. But although I have changed the thermocouple and it does appear that the pilot light is now trying to light I still have no success in keeping the pilot alight. I have tried ringing local plumbers but they are all too busy so any advise would be appreciated. Thanks.