Be sure to get your tub checked over before winter to ensure it is in good working order, time restraints on proprietary parts become a real problem in winter and can lead to costly freeze damage.
Even a tub in good working order can run into problems, in our harsh climate motherboard hardware errors can occur such as the in.xm / in.xe hr error or breaker trips, we see this happen on brand new tubs and if not caught at a maximum 2 days after the fact in -20 weather you can expect a frozen tub and a hefty repair bill, So to avoid this even if your tub is new or in excellent working order be sure to check on it by opening the cover and checking temp and function at least every 2 days.

If your tub cant be checked every few days ie. vacations or just too busy, options are available such as wifi or phone app compatible units that allow you to check on your tub via your phone whenever you feel like, though this also has its drawbacks, such as if your tub gets a critical error, hardware error, or trips the breaker the app wont work, but at the least you will see it not connecting to the app and know something is wrong and tub needs to be physically checked.