59 🟡 Repair Required
Noritz Error Code 59: Overheating Abnormality
⚠️ Your Noritz water heater is showing an overheating error. It's safe to use, but needs professional attention.
How to Fix Noritz Code 59
- Check if any faucets are left partially open, which can restrict water flow and cause overheating.
- If you recently installed or replaced a water filter, ensure it's not restricting water flow.
- Contact a licensed HVAC technician for a thorough inspection and repair.
What Does Noritz Error Code 59 Mean?
Error code 59 on your Noritz water heater indicates an overheating condition. This could be due to a faulty temperature sensor or a problem with the heating element. While the unit is still functional, it's important to address this issue to prevent further damage or safety risks. Keep using your water heater, but monitor it closely.
Common Causes of Noritz Code 59
- Faulty temperature sensor
- Problem with the heating element
- Air in the water lines causing overheating
- Incorrect water flow rate
Applicable Noritz Models
Need a Pro to Fix Noritz Code 59?
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 59
Temperature Sensor OEM: NOR-0012345
Heating Element OEM: NOR-6789012