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Replacement Of Parts; Changing The Anode Rod; Changing The Heating Element; Changing The Thermostat - Bosch Tronic 3000T ES 2.5 Installation Manual And Operating Instructions

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6

Replacement of parts

6.1

Changing the anode rod

▶ Turn off the power supply and drain the heater (see
Draining the Heater).
▶ Remove heating element (see previous section).
▶ Unscrew anode rod from threaded connection.
▶ Remove and replace the anode rod (Fig. 12 [N]).
▶ Reinstall heating element.
▶ Refill tank with water before restoring power.
6.2

Changing the heating element

▶ Turn off power supply and drain the heater (see Draining
the Heater).
▶ Remove the heating element (see section on Removing the
Heating Element)
▶ Install new element with gasket, making sure the gasket
and element are positioned correctly. Tighten the retaining
nuts and make the wire connections.
▶ Ensure that the thermostat temperature sensor is inserted
into the well located on the element assembly and secured
with black rubber grommet.
▶ Refill tank with water before restoring power.
6.3

Changing the thermostat

▶ Turn off power supply.
▶ Disconnect the 2 wire connectors on thermostat.
▶ Loosen the two brass screws at right side of thermostat and
pull wires out.
▶ Remove thermostat temperature sensor from well located
in element assembly.
▶ Unscrew and remove the two Phillips screws holding the
thermostat onto the tank.
▶ Install new thermostat and re-attach wiring and screws.
▶ Ensure that the thermostat temperature sensor is inserted
into the well located on the element assembly and secured
with black rubber grommet.
Tronic 3000T – 6 720 801 072 (2018/04)
Replacement of parts
13

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