ko 2.4 module problems

[cartz1984]

my vantage 3 is driving me nuts at the moment, basically powers up and pairs up fine when ever it doesnt matter until its time to start a heat then it decideds to not work, the light on the back of the module comes on and goes straight out when this happens, ive checked the pins/ contacts look ok occasionally it seems to come back on when ive messed around unclipping the module and trying to move it in and out but maybe a coincidence not sure, tried a mates module an its fine so definately a mudule issue just wondered if anyone can tell me what it is or if theres a fix before i buy a new one any advise much appreciated