Rheem 871018 Service Instructions Manual page 58

Power Filter: (Procedure 19)
Note: When a power filter is installed as a spare part in an 871024, 871024-B model
heater other interconnecting components will also require replacing. Refer to „Product
Changes‟ on page 10 and „Parts Replacement Scenarios‟ on page 11 for more
information.
1. Remove the front panel. Refer to Procedure 1.
2. Disconnect the incoming and outgoing wiring loom plugs.
3. Remove the 2 Philips head screws retaining the filter to the mounting bracket.
4. Remove the Power Filter.
5. Reassemble in reverse order of above.
Solar Bypass Valve: (Procedure 20)
Solar bypass valves are no longer available and if faulty are to be removed and a
Comparator installed. Refer to page 18 for the procedure on installing a comparator.
NOTE: 20L and 26 L models with a –B suffix and 24L models with a -C suffix in the model
number do not require either a bypass valve or a comparator.
Flow Sensor Turbine: (Procedure 21)
1. Isolate cold water supply.
2. Remove the front panel. Refer to Procedure 1.
3. Unscrew the water drain plug (item 405) and relief valve (item 431) and drain the water
heater.
4. Disconnect the cold water supply pipe from the cold-water inlet connection.
5. Disconnect the bypass solenoid wiring loom plug.
6. Remove 2 Philips head retaining screws holding flow sensor to water body assembly
and remove flow sensor.
7. Using a flat bladed screwdriver lever the metal disc and o‟ring from flow sensor housing
on water body assembly. Lever the disc out by placing the shaft of the screwdriver
across the disc with the tip of the screwdriver on the far inside edge of the disc.
8. Remove the four screws from the cold water inlet connector and withdraw the
connector and o‟ring from the base of the water heater.
9. Gently withdraw flow sensor turbine out from water inlet of water body assembly using
a pair of long nose pliers.
10. Reassemble in reverse order of above ensuring open slot on turbine is centred and
facing towards the face of the flow sensor.
Power cord: (Procedure 22)
Note: When a power cord is installed as a spare part in any model heater other
interconnecting components may also require replacing. Refer to „Product Changes‟ on
page 10 and „Parts Replacement Scenarios‟ on page 11 for more information.
1. Switch off power at power point and unplug power cord from power point.
2. Unscrew screw on power inlet cover and remove power inlet cover.
3. Undo cord clamp screw located next to power filter and remove clamp.
4. Disconnect the power cable wiring loom plug and withdraw power cable through slot in
heater jacket.
5. Reassemble in reverse order of above.
TM031 Integrity 18, 20, 24, 26L Service Instructions REV: B
D.O.I: February 2008
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