I busted my tank and my local store didn’t have another so I just decided to buy a whole new head/tank to go on my SMOK morph 219 mod. I asked the store clerk several times before I made the purchase if the tank I’m buying is compatible with my mod. He insisted it would work. Well now when I get it home and try to use my new tank on my mod (SMOK morph 219) it keeps asking if it’s a new coil with a different size every time. Any advice? And no I didn’t forget.... the new tank is a vaporesso cascade tank 7ml. 60.5X25MM 81g.
The Vaporesso Cascade tank is compatible.
As has been said already, you probably have the mod in temperature control mode and it senses the difference in coil resistance. It needs to know if it should reset the cold resistance for its TC calculations, or keep the old number. If you don't understand what I'm talking about, just change the mode to wattage, or VW for variable wattage, and that issue should go away.
Once you change to wattage mode you will need to set the watts to be appropriate for your atty and the head/coil(s) in it. If you are unsure what wattage the heads in your tank are rated for Google it. I know the dual coil heads are rated for a suggested 40-80 watts, if you have more than 2 coils in it the wattage will need to be a bit higher. The safest thing to do is start at the lowest suggested wattage, vape it and increase if you feel the need. You can't hurt the head or coils with too little wattage, but you can shorten their lifespan by going too high.
This plan will get you vaping quickly and then you'll have time to figure out the rest of the options in your mod. Hope this helps.