I hate to ask this question but have you shaken up your liquid vigorously before filling it up?
Best way to fix a flooded nautilus is to remove it off device, wrap it in a paper towel or tissue, and sling it mouth piece down several times hard. The paper towel is to catch the access juice that is slung from the driptip.
Yeppers. Rinsing in HOT water will definitely help. You will have an after taste of what juice you had previously put in there but it will dissipate. I would take the whole thing apart. Rinse everything in hot water.
Take a q-tip clean your mouth holes.
Take another q-tip clean your battery connection to the tank as that can sometimes be gunked up.
Take a rag or paper towel and dry your tank that you just cleaned.
Now the coil and the tank. Separate those and rinse them out.
Now take a q-tip and clean the coil hole.
Then take another qtip and clean where you put the coil in. Be careful to not leave any strings on the q-tip.
Dry the base with a rag.
Now put your coil and base together. Prime your coil with 10-15 drops.
While that is soaking put your tank back together.
Fill your tank up with e-liquid.
Now put your base on.
Take the filled tank and do that slingy thing with a rag.
Lower the voltage or watts all the way down.
Take a couple of tiny puffs.
Then slowly up the volts or watts to desired liking.
Hope this helps.
Make sure you're buying the coils from a reputable source. A lot of clones out there that will not function as well as true Aspire coils.