We & our cousins each recently bought the exact same 2018 T@B at the same time from the same dealer. We're very happy campers so far, but we noticed that ours has a 10A fuse in circuit 4, while theirs came with a 7.5A fuse. Since this circuit supplies both the SeeLevel monitor and the water pump, I referred to the literature for each (see photo of those pages attached). Both state that since the water pump requires 10 Amps minimum while the SeeLevel pump switch is limited to 7.5 Amps, this situation requires the installer to use a relay switch to handle the pump's higher current & to protect the SeeLevel display from permanent damage.
When I contacted NuCamp RV about this, I was told that they had recently switched from installing 10A fuses to 7.5A, and that ours must have been built before the change. While that may be the safest route to avoid damage to the components as installed, it does not appear to be the proper fix to resolve the problem, since the water pump literature recommends a 15A switch & a 10A fuse at minimum. It seems clear that the proper solution would be to install the required relay. Not doing so would invite problems with the water pump blowing 7.5A fuses. Moreover, our display has already been running with a 10A fuse, so what if our display starts having problems?
In any case, since we were not notified about this, I'm posting here to let others know, and I'm curious what others think should be done to resolve the situation. I have seen 12V/20A relays available for less than $10, and with an added inline fuse plus the relay to protect the SeeLevel switch/display, this could be readily corrected at minimal cost. It seems to me that a product recall notice should be issued & covered under warranty, but if NuCamp won't do it, then what good is the warranty? I could do it myself.