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FAQ - What does a 73 error code mean?

Article Number: 223 | Rating: 5/5 from 1 votes | Last Updated: Fri, Nov 21, 2014 10:56 AM

The 73 error code indicates a circuit board setting issue. It is triggered by the following conditions:

Jumper connection or dip switch changed while power supplied to heater
Improperly programmed circuit board

This error code can be reset by unplugging the heater for 30 seconds and then plugging it back in.

For further technical assistance call 866-766-7489 or visit http://support.noritz.com/servicereplocator.php to find a local service representative

Applicable Models

Models: ALL MODELS

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