Name: Rheem GHE100-350
Brand: Rheem
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Triton Service Manual SVC1020T ; Rev 4

80 and 100 gallon chassis

Triton Disassembly and Repair

On the next few pages we have included instructions for replacing most repair parts on the Triton water

heater. To further aid in the repair process we have also created some repair videos that can be accessed

through the hyperlinks below.

Below is a list of currently available servicing video links with step by step walkthroughs of replacing

each part.

Links are active in PDF Documents. If you have received this document as a paper copy, videos can be

found by visiting Rheem’s YouTube channel at www.youtube.com/RheemMFG.

• Replacing the Burner Assembly

• Replacing the Gas Pressure Switch

• Replacing the Ignitor

• Replacing the POF Pressure Switch

• Replacing the Flame Sensor

• Replacing the Gas Valve Assembly

Table of Contents2
Introduction4
Safety4
Specifications5
Speed Table6
Component Parts7
Wiring Diagram8
Connection Diagram9
Top View10
Parts11
User Interface14
- Start -U P14
- Temperature Adjustment14
- Setting Menu14
- Status Menu16
- Service Menu16
Display Messages on Controller18
Sequence of Events19
Sequence of Operations22
Safety Functions of the Controls25
- Flame Detection25
- ECO (Energy Cut Off)25
- Pressure Switches25
- Vent Temperature (Flue Gas) Sensor25
- Power Outages26
- Controller Retry and Ignition Attempts26
- Condensate Removal Tube26
Error Codes27
Troubleshooting Error Codes31
- Error A001 Ignition Lockout31
- Error A002 Flame Is Not Stable33
- Error A003 Intake Switch Open33
- Error A004 Pof Open During Heating34
- Error A005 Pof Open During Pre-Purge34
- Error A006 Pof Open During Post Purge34
- Error A007 Exhaust Pressure Switch Open35
- Error A008 Pof/Blower Mismatch35
- Error A010 End of Line Test Failure35
- Error A016 Eco Switch Is Open35
- Error A017 Flue High Flue Temp36
- Error A018 Flue Temp Sensor Open37
- Error A019 Flue Temp Sensor Shorted37
- Error A022 Upper Tank Sensor Is Open37
- Error A023 Upper Tank Temp too Hot38
- Error A024 Upper Tank Sensor Shorted38
- Error A025 N Oblower Rpm Feedback38
- Error A026 Blower Expected Rpm/Actual Rpm Mismatch38
- Error A027 Flame Present before Ignition38
- Error A028 Flame Present Without Heating39
- Error A029 Failed Ignition39
- Error A030 Flame Loss During Heating39
- Error A031 Loss of Anode Communication39
- Error A033-A043 Communication Errors39
- Error A044 Processor Clock/Line Frequency Disagree39
- Error A101 Configuration Data Restore40
- Error A102 Time Clock Needs to be Programmed40
- Error A103 Time Clock Not Advancing Time Properly40
- Error A104 Water Leak Detected40
- Error A108 Ignition Board Communication Failure40
- Error A109 External Co Sensor Alarm40
- Error A110/A111 Shut -Off Valve Monthly Test Close Open Error40
- Error A112 Shutoff Valve Not Open41
- Error A121 no Water Detected in Tank41
- Error T009 N Ogas Detected41
- Error T020-T021 Lower Tank Sensor Open /Shorted41
- Error T029 Failed Ignition -Retrying42
- Error T032 Lower Tank Temp A/D Error42
- Error T105 Water Leak Sensor Not Installed42
- Error T113-T114 Flame Rod Degraded42
- Error T115-T116 Combustion Health Degraded42
- Error T117-T120 Periodic Maintenance42
- Error T122 N Ocomm with Powered Anode Controller for >60 Seconds43
- Error T123-T137 Anode Alerts43
Gas Pressure Checking Procedure48
Gas Valve Adjustment Procedure49
Disassembly and Repair50
Bacnet Configuration55
Leakguard60

Brand	Rheem
Model	GHE100-350
Category	Water Heater
Language	English

Rheem GHE100-350 User Manual

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