67
Noritz PCB / Control Board Fault

Error code 67 displayed; unit may not start.

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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

Internal PCB failure, Corrupted control logic, Damage from power surge, Moisture intrusion on PCB

How to Fix / Troubleshooting

Safety first: Turn OFF power and gas. Do not attempt to repair the PCB at component level.

Steps to check and correct:

  • Inspect PCB area: Remove the front cover and look for signs of water leaks, corrosion, or burnt components on the PCB. Address any leaks before replacing the board.
  • Check all connectors: Reseat all harness connectors to the PCB to rule out poor contact.
  • Power reset: Turn off power at the breaker for 5–10 minutes, then restore.
  • Professional replacement: If error 67 remains, the PCB must be replaced with an OEM Noritz board by a qualified technician. Ensure correct model-specific board is used.
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Repair Difficulty

Professional Required 5/5

Required Part

Main Control PCB
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