Rheem II Series Service Instructions Manual
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Rheem II Series Service Instructions Manual

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Rheem Australia Pty Ltd
This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed "uncontrolled"
12-26L Series II
Continuous Flow Gas Water Heater
First Issued: 10/2017
ABN 21 098 823 511
TM090
Issued: Oct 2017
Revision: AB
Issued: Feb 2019
Rheem
Solahart
874812XF
876812XF
874T16XF
876T16XF
874820XF
874820XF/J
876820XF
874T26XF
876T26XF
10143267
874826XF/J
10143268

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Summary of Contents for Rheem II Series

  • Page 1 Issued: Oct 2017 Revision: AB Issued: Feb 2019 Rheem Solahart 874812XF 876812XF 874T16XF 876T16XF 874820XF 874820XF/J 876820XF 874T26XF 876T26XF 10143267 874826XF/J 10143268 First Issued: 10/2017 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...

  • Page 2: Table Of Contents

    COMPONENT REPLACEMENT PROCEDURES ............. 52 DOCUMENT REVISION HISTORY ................... 60 TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...

  • Page 3: Introduction

    TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...

  • Page 4: Touch Voltage Testing

     If the earth path of the appliance is intact, the problem is with the household wiring. TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...

  • Page 5: Water Heater Model Identification

    20L – Propane gas 26L – Natural gas 26L – Propane gas TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...
  • Page 6 (offset) to compensate for temperature losses in the pipework, between the water heater outlet and sanitary fixtures. TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...
  • Page 7 Wi-Fi network or a compatible mobile device are not available. TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...

  • Page 8: Wiring Diagram

    WIRING DIAGRAM TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...

  • Page 9: Preset Temperature Adjustment

    Note: The preset outlet temperature setting of the water heater must be set at 48°C prior to the commencement of this procedure. TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...

  • Page 10: Sequence Of Operation

    7. Once the post-purge operation ends (up to 6 minutes) power to the Fan Motor (25) is cut and the Fan (24) stops. TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...
  • Page 11 X = Flame sensor is not detecting flame. O = Flame sensor is detecting flame TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...

  • Page 12: Anti-Frost Heater Circuit

    In-series gas boosting Solar Loline Installation TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...

  • Page 13: Tempering Valves

    (refer to diagram below). TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...

  • Page 14: Remote Controllers

    The water temperature can be decreased from any setting whether hot water is flowing or not. TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...
  • Page 15 * Temperatures above 48 degrees are not available on 876 series as these units have a maximum selectable temperature of 48 C at all locations. TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...
  • Page 16 TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...
  • Page 17 C when 50 C is displayed with 876 series models TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...
  • Page 18 Increases the general purpose temperature setting.  (down button) Decreases the general purpose temperature setting. TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...

  • Page 19: Bath Fill Operation

    Water flow control valve closed Bath Fill operation finished TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...
  • Page 20 MUST be connected to the same phase for EziSET to operate correctly. TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...

  • Page 21: How To Fault Find

    PCB. TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...
  • Page 22 J0 - J9 U0 - U9 Operational Flow Chart Section TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...

  • Page 23: Operational Flow Charts

    Note: see page 22 for details on interpreting chart abbreviations TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...
  • Page 24 Note: see page 22 for details on interpreting chart abbreviations. TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...
  • Page 25 Note: see page 22 for details on interpreting chart abbreviations. TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...

  • Page 26: Error Codes

    Note: see page 22 for interpretation of abbreviations. TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...

  • Page 27: Diagnostic Test Points

    *2: Approximate reading measured by digital multimeter on AC range. TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...

  • Page 28: Maintenance Information

    X 10 hrs Null Null Null Null Null Null Null Null Null TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...
  • Page 29 Dip Switches circuit board Min Button Max Button ADJ. Button TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...

  • Page 30: Clearing Error Code History

    5. Refit the water heater front panel. TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...

  • Page 31: Resetting Error Codes

    G: Green O: Orange Y: Yellow Y/G: Yellow / Green TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...

  • Page 32: Fault Finding

    FAULT FINDING EZ-Link TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...
  • Page 33 DC2 –5V (or measurement by pulse counter of not less than 1310 pulses per minute) between 17 Blue and 16 Black TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...
  • Page 34 14 Green and 9 Black between 15 Blue and 9 Black TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...
  • Page 35 PCB between 11 Black and 12 Yellow TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...
  • Page 36 170V. between 1 Grey and Earth between 1 Black and 7 Red. TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...
  • Page 37 Using an insulated tool, turn DIP switch 1 on the DIP switch or MIN and MAX buttons. TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...

  • Page 38: Fault Diagnosis Sequence

    PCB TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...

  • Page 39: Fault Finding Chart 1

    Remote controller failed – replace. (1E displayed?) PCB failed – replace. TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...

  • Page 40: Fault Finding Chart 2

    Gas type connector was originally not redisplayed? inserted correctly. Faulty gas type connector - replace. TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...

  • Page 41: Fault Finding Chart 3

    Replace the fan motor assembly. sent from the fan motor? Replace the PCB assembly. TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...

  • Page 42: Fault Finding Chart 3.1

    Replace the igniter assembly, electrode or cable. TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...

  • Page 43: Fault Finding Chart 3.2

    Clean the burner if necessary. Replace the burner change over assembly. TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...

  • Page 44: Fault Finding Charts 3.3 & 3.5

    Replace the PCB assembly. information indicating 00? Replace flame sensors TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...

  • Page 45: Fault Finding Chart 3.6

    Replace the proportional gas flow regulating valve. TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...

  • Page 46: Fault Finding Chart 3.7

    Remove the fault persists replace the controllers. water body assembly. TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...

  • Page 47: Fault Finding Chart 5

    Turn hot tap off. Replace controller. operating light go out? Normal operation. TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...

  • Page 48: Eziset Fault-Finding

    * contact the Rheem Technical Helpline for assistance. TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...
  • Page 49 Contact the Rheem Technical Helpline for assistance if fault remains. TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...

  • Page 50: Burner Gas Pressure Check

    12. Refit the front panel to the water heater. label, no further adjustment is required. TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...
  • Page 51 13. Refit the front panel to the water heater. TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...

  • Page 52: Component Replacement Procedures

    13. Reassemble in reverse order of above. Replace gaskets if required. 14. Test for gas leaks using soapy water solution. TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...
  • Page 53 6. Replace the felt gaskets (item 740) if required. 7. Test for gas leaks using soapy water solution. TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...
  • Page 54 9. Test for gas leaks with soapy water solution. TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...
  • Page 55 7. Reassemble in reverse order of above, replacing pipe O-rings and thermistor O-ring (item 432) if required. 8. Test for water leaks. TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...
  • Page 56 TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...
  • Page 57 Bathroom Controllers: Disconnect the multi-pin plug. 5. Reassemble in reverse order of above. TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...
  • Page 58 4. Disconnect remaining two connecting cord wiring loom plugs and remove connecting cord. 5. Reassemble in reverse order of above. TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...
  • Page 59 (individual spare parts are not available, use complete EziSET kit 052310 when replacing parts). TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...

  • Page 60: Document Revision History

    TM090 12-26 Series II CFGWH Service Instructions REV AB – Issued February 2019 This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”...

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