Rinnai Error Code 79

Beginner Info, Tankless Water Heater

Rinnai Error Code 79
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In this post, I’ll be walking you through various aspects of Rinnai Error Code 79 so that you can troubleshoot in a hassle-free manner.

Rinnai Error Code 79 is definitely one of those error codes that can be troubleshooter in an epigrammatic span of time.

Whenever water leakage is detected, Rinnai error code 79 will be displayed on your tankless water heater.

Troubleshooting Steps

  • Check wiring harness at leak detector for loose, broken or damaged wiring or connections
  • Check the heat exchanger and all piping inside the unit for leaks
  • If no leaks are found inspect inside of cabinet for signs of water pooling on bottom pan of water heater
  • Wipe or blow out any water found in cabinet. Dry off leak sensor and restart unit
  • If no water is found in cabinet unplug sensor and start water heater. If unit operates with sensor unplugged replace sensor and screw

Replacement Parts

  • Water Leak Sensor
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If you’re getting multiple error codes displayed on your tankless water heater then I would suggest you should download Rinnai error codes pdf where you’ll get the troubleshooting steps for almost all the error codes.

In case, your problem isn’t solved even after expediting the troubleshooting steps then you need to consult a qualified technician in order to avoid any last minute debacle.

It’s A Wrap

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Cutting long-story-short, we’ve explained the troubleshooting steps in simple and easy way so that even the newbie can expedite it without any hassle.

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