A.O. Smith ECT-52 Water Heater User Manual


 
17
The water passing out of the drain valve may be extremely hot. To
avoid being scald, make sure all connections are tight and that the
water flow is directed away from any person.
4. Remove the screw(s) securing the outer door, and remove door.
FIGURE 14.
5. Remove or fold up the insulation.
FIGURE 15.
6. A. Models with lower thermostat without high limit: Lift
out the tab as shown below to unclip the terminal cover
from the thermostat. The terminal cover can now be
removed from the thermostat.
FIGURE 16.
B. Models with Upper or Lower Thermostat with High
Limit: Lift out the tab as shown below to unclip the terminal
cover from the thermostat. The terminal cover can now be
removed from the thermostat.
FIGURE 17.
7. Disconnect the two wires on the element and unscrew the old
element from the tank.
FIGURE 18.
8. Clean the area around the element opening. Remove any
sediment from or around the element opening and inside the tank.
9. If you are cleaning the element you have removed, do so by
scraping or soaking in vinegar or a deliming solution.
NOTE: Replacement elements must (1) be the same voltage and
(2) no greater wattage than listed on the model rating plate
affixed to the water heater.
10. A new gasket should be used in all cases to prevent a possible
water leak. Place the new element gasket on the threaded side
of the cleaned or new element and screw into tank, securing
tightly using an element wrench.
FIGURE 19.