My trusty innokin SVD now indicates the wrong resistance. A 1.8 ohm coil  checked on a VV 3 indicates 4.4 ohms on the SVD. The SVD's contacts  are clean. I also tried removing the battery, pressing the fire button for  ten seconds and then reinstalling the battery but the SVD still indicates a resistance of 4.4 ohms for a  1.8 ohm coil. Is there anything else I should try? 
Thanks,
	
		
			
		
		
	
			
			Thanks,