R11 relay constantly clicking

[Dazdaz310]

Hi guys I’m hoping someone can help me I have a 2016 Ford transit custom 2.2 when I turn ignition on I get a constant ticking noise coming from r11 relay and when started it continues clicking I’ve tried a different relay and it does the same thing I’ve been online and it says it’s for the Fuel vaporizer system glow plug has anyone had this problem! been online but can’t really find anything. I parked it up a couple weeks ago when I finish work and it was fine I went out there the other day to take it for a quick run out that’s when it started. Cheers daz