Noritz Error 59 — Scale Buildup Warning

What Causes Noritz Error 59?

Noritz's dedicated scale alert. The unit has detected conditions suggesting significant mineral scale accumulation. Very common in Los Angeles given the extremely hard water.

How to Fix Noritz Error 59

Schedule descaling immediately. Ignoring error 59 leads to error 16 (overheating) and eventually heat exchanger failure. We perform Noritz descaling throughout LA.

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.