Code 71
Rinnai Solenoid Valve Circuit Fault

Unit displays Code 71 and will not operate

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Open or shorted gas solenoid coil, Damaged wiring harness, Faulty control board driver

How to Fix / Troubleshooting

Safety first: Turn OFF gas and power. Gas valve and solenoid work should be performed by qualified personnel.

Steps to check:

  • Inspect harness: Check the wiring harness to the gas solenoid valves for damage or loose connectors.
  • Reset and test: Restore power and gas and reset the unit.

When to call a professional: A technician should measure solenoid coil resistance and replace the gas valve assembly or control board as required.

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Repair Difficulty

Professional Required 5/5

Required Part

Gas Valve Assembly
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