Does your thermostat keep tripping the reset? The reset button is a safety switch for the thermostat that disconnects electric supply to the heater if the water exceeds a certain temperature. The sensing button of the reset is always in contact with the metal tank. For that reason, it quickly senses water temperatures through conduction. If you get tripping problems with your hot water tanks in Saskatoon, then that is an indication of a thermostat defect. There are different causes of such tripping.
If your thermostat is failing to shut off and allows continuous heating of the water, tripping will occur. Note that this only happens if the water heats beyond the set temperatures. Electric Water heaters in Saskatoon have two thermostats that are under access panels. Either could cause its element to heat the water beyond 180 degrees F when the reset opens.