There always seems to be a bit of juice between the removable panels but I’m always giving it a wipe over to prevent build up.Do you have any juice building up in the battery compartment. The two I had leaked juice all inside the mod and maybe thats causing your problem
I reckon a lot of these mods are hit and miss.
I have a couple of aspire feedlink squonk mods, swap the tanks regularly. One has a build up of juice the other doesn’t