Potterton Suprima 100L installed - When I trigger the HW to on it fires up from Static Red to Green quite happily and burner ignites, however when I trigger the CH side of things nothing happens at the boiler - LED remains static RED (Myson 2MEP 2c programmer panel in house - in case it's this that is causing the problem) - Any ideas? I have pressed reset switch on boiler with CH set to on - no response at boiler apart from a couple of clicks - LED remains Static red at all times. With CH set to on, I have adjusted room thermostat upwards to try and trigger a boiler response - nothing...