11.5 Removing the heating element. STIEBEL ELTRON SHC 4, SHC 6, SHC 2.5

INSTALLATION

MAINTENANCE INSTRUCTIONS

11.5 Removing the heating element

1 Unplug and drain the water heater. See 11.3, “Draining the water heater”, pg. 7.

2 Remove the cover. See 11.4, “Removing the cover”, pg. 7.

3 Disconnect the line wires from the thermostat.

4 Remove the thermostat from the heating element.

5 Using a suitable wrench, unscrew the heating element.

6 Remove the heating element from the tank.

2 To descale chemically, soak the heating element in white vinegar or other descaling solution, then rinse well.

3 To descale manually, use a nonmetallic (soft) tool; brush the crust off the element. Make sure you do not damage the surface of the heating element.

4 Reinstall the heating element.

5 Refill the water heater with water and check for leaks before connecting the power.

11.7 Replacing the heating element

1 Unplug and drain the water heater. See 11.3, “Draining the water heater”, pg. 7.

2 Remove the cover. See 11.4, “Removing the cover”, pg. 7.

3 Remove the heating element. See 11.5, “Removing the heating element”, pg. 8.

4 Install and seal the new element. Make sure that the heating element is positioned correctly.

11.6 De-scaling the heating element

Scale deposit can affect the heating capacity of the heating element. Scale can even cause the element to burn out. The element can be descaled either chemically or manually.

1 Remove the heating element. See 11.5, “Removing the heating element”, pg. 8.

5 Remount all the line wires to their original location.

6 Refill the water heater with water and check for leaks before connecting the power.

11.8 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 indicator of a spent anode rod.

1 Unplug and drain the water heater. See 11.3, “Draining the water heater”, pg. 7.

2 Remove the cover. See 11.4, “Removing the cover”, pg. 7.

3 Remove the heating element. See 11.5, “Removing the heating element”, pg. 8.

4 Secure the anode using pliers.

5 Unscrew the nut and remove the anode rod through the opening of the heating element port.

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