Rheem 325 II Series Service Instructions Manual page 57

Anode
1. Isolate power and water supplies to the water heater.
2. Relieve pressure from the water heater through the T&PR valve or a hot tap.
3. Remove the anode cap on the top of the storage tank.
4. Using a tube or socket spanner, unscrew and remove the anode. Use a 27mm tube or
socket spanner for Rheem, Everhot and Solahart storage tanks, and a 35mm tube or
socket spanner for AquaMax storage tanks.
5. Apply thread seal tape to replacement anode, refit and tighten. Note: It may be
necessary to cut the anode to length prior to fitting. Refer to page 6 for the correct
anode length.
6. Restore the water supply and check for leaks.
7. Refit the anode cap and restore power.
Mechanical Thermostat
1. Isolate power to the water heater.
2. For AquaMax storage tanks only, remove the heat pump module. Follow steps 6 – 8 of
the „Heat Pump Module Removal‟ procedure on page 62.
3. Remove the storage tank upper electrical access cover and confirm with a multi-
meter across thermostat terminals 1 and 3 that voltage is not present
4. Disconnect the wiring from the thermostat
5. Slide the thermostat out from under the retaining clamp.
6. Remove any scale from the cylinder surface.
7. Fit the replacement thermostat under the clamp.
8. Reconnect the wiring as per the wiring diagram on page 26.
9. Check water heater internal wiring insulation for cracking.
10. Conduct an Electrical Insulation Test – refer to pages 40 and 55.
11. Refit the access cover (and the heat pump module for AquaMax storage tanks) and
restore the power supply.
Heating Element
1. Drain the water heater. Refer to „Draining the Water Heater‟ procedure on page 56
2. Disconnect the heating element wiring from the thermostat and slide the thermostat out
from under the retaining clamp.
3. Remove the two screws retaining the thermostat clamp
TM077: 325 & 410 Series II Heat Pump Service Instructions
Rev 00: Issued April 2014
This document is stored and maintained electronically by Service. All printed copies are deemed uncontrolled.
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