11 🟡 Repair Required
Noritz Error Code 11: Ignition Failure
⚠️ Your Noritz water heater is experiencing an ignition failure, which may cause a lack of hot water. It's safe to use, but needs professional attention.
How to Fix Noritz Code 11
- Step 1: Turn off the water heater at the power switch to prevent further attempts at ignition.
- Step 2: Do not attempt to open the water heater or perform any repairs yourself.
- Step 3: Contact a licensed HVAC technician to diagnose and repair the issue.
What Does Noritz Error Code 11 Mean?
The Noritz 11 error code indicates that your water heater's ignition system is not functioning properly. This could be due to a faulty ignition control board, a bad spark igniter, or a problem with the gas valve. The system is designed to protect itself from potential hazards, so it's safe to use, but you'll need to call a professional to fix the issue.
Common Causes of Noritz Code 11
- Faulty ignition control board
- Bad spark igniter
- Problem with the gas valve
- Clogged or dirty flame sensor
Applicable Noritz Models
Need a Pro to Fix Noritz Code 11?
A licensed HVAC technician can diagnose and fix this issue quickly.
Find a Licensed Tech Near You →Replacement Parts for Noritz Tankless Water Heater Code 11
Ignition Control Board OEM: 300-2000
Spark Igniter OEM: 300-2010
Gas Valve OEM: 300-2020