STIEBEL ELTRON SHC 4 - Manual (Page 10)

10 | SHC 2.5 / SHC 4 www.stiebel-eltron-usa.com
INSTALLATION
Maintenance Instructions
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12.6 Changing the anode rod
A magnesium anode is used to extend the life of the
tank. Permanent removal of this anode for any reason
will void the warranty.
Depending on conditions, the magnesium anode rod
may need to be changed approximately every two years.
Galvanic and electrolytic corrosion can destroy a tank
with a spent anode rod. Rusty water is usually an indi-
cator of a spent anode rod.
1. Unplug and drain the water heater (See 12.1,
“Draining the water heater”, pg. 9).
2. Remove the cover (See 12.2, “Removing the
cover”, pg. 9).
3. Remove the heating element (See 12.3, “Remov-
ing the heating element”, pg. 9).
4. Remove the anode rod from the dismounted
heating element holder by unscrewing.
5. Fit a new anode rod into the heating element
holder.
6. Refit all the wires and the heating element.
7. Refill the water heater with water and check for
leaks before connecting the power.
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12.7 Safety Shut-off
!
WARNING:
NEVER LOCK THE SLIDING RESET PLUNGER.
DANGER:
WATER TEMPERATURES OVER 125 °F (52 °C)
CAN CAUSE SEVERE BURNS INSTANTLY OR
DEATH FROM SCALDING. DO NOT ATTEMPT TO
RESET THE HIGH LIMIT SWITCH WITHOUT FIRST
COOLING DOWN THE WATER INSIDE THE WATER
HEATER.
12.7.1 Resetting high temperature shut-off system
1. Unplug the water heater.
2. Remove the cover (See 12.2, “Removing the
cover”, pg. 9).
3. Unplug the adapter (1) from the controller shaft.
4. Press in button (2) with an appropriate tool.
5. Reassemble the adapter in the correct position.
6. Reassemble the cover of the heater and tighten.
7. Reassemble the thermostat control knob.
1 2
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1. Adapter
2. Button