Navien Water Heater Error Code 017: How to Fix It

Q: What does Navien error code 017 mean?

Error 017 indicates low ignition voltage, meaning the control board detects insufficient voltage to create a spark for ignition.

Q: Can a dirty flame sensor cause error 017?

Yes, a dirty or faulty flame sensor can disrupt the ignition process and trigger this error. Cleaning or replacing it often resolves the issue.

Q: How do I reset a Navien water heater?

Turn off the unit, wait 30 seconds, then turn it back on. For a hard reset, press and hold the 'Reset' button (if available) for 10 seconds, or cycle power twice.

Q: Is error 017 covered under warranty?

It may be covered if the unit is within warranty and the cause is a defective part. Contact Navien support for assistance.

Q: How much does it cost to fix Navien error 017?

DIY repair costs are minimal (multimeter, cleaning supplies). If a professional is needed, expect $150-$300 for diagnosis and repair, plus parts if required.

Abstract

Error code 017 on Navien tankless water heaters means the ignition voltage is too low. This usually indicates a power supply issue, a faulty ignition component, or a wiring problem. Follow these steps to restore normal operation.