Rinnai Code 16 — Overheating — High Water Temperature

What Causes Rinnai Code 16?

The outgoing water temperature exceeded the safe limit. Can be caused by a faulty temperature sensor, a stuck gas valve, or scale reducing flow through the heat exchanger.

How to Fix Rinnai Code 16

Do not attempt to operate the unit until diagnosed. Call Simple Water Heater & Filtration for prompt Rinnai repair in 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 Rinnai and provide repair service throughout Los Angeles, the San Fernando Valley, Westside LA, and Ventura County.