Parts Order & Support Overview

This article will go over the basics of using the Noritz Support and Parts ordering website. Some things may have changed from our old website and some things may have been moved around.

How to Begin

Start by using the search bar at the top of the website to type in either a Model Number or a Part Number to narrow down your search.

Website Tools

Technical Documents – use this page to search for downloadable documents, manuals and heater certifications by a heater’s model name.

Parts Categories – narrow down your parts search by choosing the parts category

Product Information Page– the most comprehensive portion of the site. You can narrow down by heater type and then heater model. From here you can choose the exact model and find all the following:

  • Full Heater Specs and information
  • Downloadable Technical Documents
  • Heater Warranty Information
  • Heater Parts Diagram
  • Parts Search Filter
  • Available Parts for Purchase

Knowledge Base – The article you are currently reading is housed on the knowledge base. This self-help document center houses searchable information available to the public to help answer common questions you may have.

Heater Information Page

The heater information page is a comprehensive summary of the heater. Here you can toggle between the information available on the product.

Technical Literature – Downloadable manuals and PDFs the product


Use the embedded PDF to look for your particular part. Use the zoom tool and scroll bars to move around the document.

Be sure to use the ORDER NOS. not the Part Nos. The ORDER NOS. is what you should be using to search for your part.


Once you have identified your ORDER NOS. you can use the filter to narrow down your search.

Updated on July 12, 2021

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