Rheem continuous flow water heaters, renowned for their efficiency and reliability, occasionally encounter issues that are communicated through error codes. Understanding these codes can empower homeowners to address minor concerns or provide accurate information to plumbing professionals. In this guide, Adelaide Emergency Plumbing sheds light on common Rheem continuous flow water heater error codes and offers insights into troubleshooting.

Common Rheem Continuous Flow Water Heater Error Codes

03: EZ Link

Fault Condition: EZ Link issue.
Troubleshooting: While basic troubleshooting may be attempted, it’s advisable to book a service call for a thorough examination.

05: Imperfect Combustion Alarm

Fault Condition: Indicates imperfect combustion during heating.
Troubleshooting: Book a service call for a professional examination to ensure safe operation.

10: Abnormal Low Rate Combustion

Fault Condition: Abnormal low-rate combustion.
Troubleshooting: Seek professional intervention. Schedule a service call to address and rectify the issue.

11: Ignition Failure at Start-Up

Fault Condition: The system failed to ignite at startup.
Troubleshooting: LPG users should check propane bottle level, cycle power off and on, and open the hot tap. If the fault reoccurs, book a service call.

12: Flame Failure During Operation

Fault Condition: The flame failed during operation.
Troubleshooting: Immediate professional assistance is required. Book a service call for a thorough examination.

14 – Overheating:

Fault Condition: The system has detected overheating. Items To Check: Don’t ignore this. Book a service call promptly to prevent potential damage.

15 – Very High Temperature:

Fault Condition: The system has reached a very high temperature. Items To Check: Urgent professional assessment is needed. Schedule a service call to avoid further complications.

16 – Outlet Water Temp Too High:

Fault Condition: The outlet water temperature is too high. Items To Check: Seek professional assistance through a service call to rectify the issue.

24 – Operational Switch Faulty:

Fault Condition: Faulty operational switch. Items To Check: It’s time to let the professionals handle it. Schedule a service call for a thorough examination.

29 – Heat Exchanger Outlet Temp. Too Low:

Fault Condition: The heat exchanger outlet temperature is too low. Items To Check: A service call is required to pinpoint and resolve the issue.

31, 32, 33, 34 – Thermistor Open Circuit:

Fault Conditions: Various thermistor-related open circuits. Items To Check: Multiple possibilities here; a professional service call is necessary to diagnose and fix the problem.

35 – Thermistor Connections Crossed:

Fault Condition: Thermistor connections are crossed. Items To Check: Expert assistance is needed. Schedule a service call for a precise resolution.

51 – Gas Cut Off Malfunction (SV0 Failure):

Fault Condition: Gas cut-off malfunction, specifically SV0 failure. Items To Check: Seek professional help. Book a service call to address the gas cut-off issue.

52 – P.G.F.R Control Failure:

Fault Condition: P.G.F.R control failure. Items To Check: Professional intervention is crucial. Schedule a service call to address the control failure.

56 – Bypass Solenoid Failure:

Fault Condition: Bypass solenoid failure. Items To Check: It’s time to let the experts handle it. Schedule a service call for a thorough examination.

61 – Abnormal Fan Speed or Fan Failure:

Fault Condition: Abnormal fan speed or fan failure. Items To Check: Seek professional assistance through a service call to rectify the issue.

65 – Malfunction of Water Volume Control Motor:

Fault Condition: Water volume control motor malfunction. Items To Check: It’s time to let the professionals handle it. Schedule a service call for a thorough examination.

66 – Water By-Pass Control Fault:

Fault Condition: Water bypass control fault. Items To Check: Professional intervention is crucial. Schedule a service call to address the control fault.

71 – G.I.S Valve Control Failure: Fault Condition: G.I.S valve control failure. Items To Check: Expert assistance is needed. Schedule a service call for a precise resolution.

72 – Detected False Flame:
Fault Condition: False flame detected. Items To Check: Seek professional help. Book a service call to address the false flame issue.

73 – Vent Type Control Data Failure

Fault Condition: Vent type control data failure. Items To Check: Professional intervention is crucial. Schedule a service call to address the control data failure.

74 – Communication Problem Between Remote Controller and Water Heater

75 | 76 | 79: Fan motor current detection failure

80: Gas cut off defective

81: No false flame detected

82: Functional problem on gas type circuit board

90: Decrease in fan motor ventilation.

99: Decrease in fan motor ventilation.

(Operation stop)

Why Understanding Error Codes Matters

• Prompt Response: Knowledge of error codes allows homeowners to respond promptly to emerging issues, preventing potential escalation.
• Communication with Professionals: When seeking professional assistance, understanding error codes enables effective communication with plumbing experts, streamlining the resolution process.
• DIY Troubleshooting: Basic troubleshooting measures can be attempted by homeowners, potentially resolving minor issues without immediate professional intervention.

When to Call Adelaide Emergency Plumbing

While basic troubleshooting is encouraged, certain issues require professional expertise. If error codes persist or indicate complex problems, it’s advisable to contact Adelaide Emergency Plumbing. Our experienced team is equipped to handle Rheem continuous flow water heater issues, ensuring efficient and safe operation.

Stay informed, address concerns promptly, and trust Adelaide Emergency Plumbing for reliable solutions to Rheem continuous flow water heater error codes.