Noritz Error 16 — Overheating — Outlet Temperature Too High

What Causes Noritz Error 16?

The outgoing water temperature exceeded safe limits. In Los Angeles, scale buildup is the most common cause, reducing flow and causing the heat exchanger to overheat.

How to Fix Noritz Error 16

Annual descaling prevents this. If you see error 16, descaling is overdue. Call us for Noritz descaling and service throughout Los Angeles.

When to Call a Professional

Call Simple Water Heater & Filtration if:

• The error code returns after resetting
• You are not comfortable working with gas appliances
• The unit is making unusual sounds alongside the error
• This is the second time you have seen this code in the past year

We are factory-trained on Noritz and provide repair service throughout Los Angeles, the San Fernando Valley, Westside LA, and Ventura County.