State P6 20 10 MS K - Manual (Page 17)

Periodic Maintenance (cont’d)
7. Disconnect the two wires on the element and unscrew
the old element from the tank.
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 de-liming
solution.
10. A new gasket should be used in all cases to prevent a
possible water leak. Place the new element gasket on
the thread side of the cleaned or new element and
screw into tank, securing tightly using an element
wrench.
11. Close the drain valve by turning the handle to the
right (clockwise).
12. Open the cold water supply valve to the water heater.
NOTE: The cold water supply valve must be left open
when the water heater is in use.
13. To insure complete filling of the tank, allow air to exit
by opening the nearest hot water faucet. Allow water
to run until a constant flow is obtained. This will let
air out of the water heater and the piping.
17
Lift out tab to unclip
terminal cover from
thermostat.
B. Models with Upper or Lower Thermostat with High
Limit: Lift out the tab as shown below to unclip the termi-
nal cover from the thermostat. The terminal cover can
now be removed from the thermostat.
Lift out tab to unclip
terminal cover from
thermostat.
WARNING
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.
14. Check element for water leaks. If leakage occurs,
tighten element or repeat steps 2 and 3, remove ele-
ment and reposition gasket. Then repeat steps 10
through 14.
15. Reconnect the two wires to the element and then
check to make sure the thermostat remains firmly
against the surface of the tank.
WARNING
Never use this water heater unless it is completely full of
water. To prevent damage to the tank and heating ele-
ment, the tank must be filled with water. Water must flow
from the hot water faucet before turning “ON” power.