You obviously have an older rig . My 2020 has muliple systems that you cannot shut off 1 being the "in command" which allows you to control rv functions from your cell phone include hvac slides genny and alarm these all have constant power that runs in the background . So no there is nothing wrong. Its called technology lol great when it works for crappy when its agianst you
first thing to do is establish the wattage drain, then add the self discharge rate to that figure.
say your drain is 1 Amp and you have 12 Volt lead acid batteries.
watts = volts * amps therefore your drain = 12 W
lead acid self discharge is approx 5%/month, so multiply your A/h capacity by 5%
eg: 100 A/h would be 100 * 0.05 = 5 A/hr
watt hours is therefore 12 Volts * 5 Amps = 60 W/h / 30 days = 2 W/h per day
drain for one day = 12 Watts * 24 hours + 2 = 290 Watt/hours
from your sig. location = Calgary, sun insolation worst case = 3.1 hours.
panel size = (290 x 1.5) / 3.1 gives 140 watts, so round up to a 150 Watt panel
and your good to go even in winter.
just an approximation, measure and insert your actual value in place of my example 12
and run the calculation. you will have a good idea of panel size to maintain your system..