72 🟡 Repair Required
Rinnai Error Code 72: Flame Rod Detection
⚠️ Your Rinnai water heater is experiencing a flame rod detection issue, which has caused it to shut down for safety reasons. It's important to address this issue promptly to prevent further damage or potential hazards.
How to Fix Rinnai Code 72
- Step 1: Locate the reset button on your water heater and press it to reset the system. If the error persists, proceed to the next step.
- Step 2: Check the gas supply to your water heater. Ensure the gas valve is open and the gas supply is turned on at the main gas supply valve.
- Step 3: If the issue persists, it's best to call a professional HVAC technician to diagnose and repair the problem.
What Does Rinnai Error Code 72 Mean?
The Rinnai 72 error code indicates a problem with the flame rod, a crucial safety component in your water heater. The flame rod monitors the burner's ignition and flame stability. When the system detects an issue with the flame rod, it shuts down the burner to prevent potential gas leaks or other hazards. Common causes for this error include a faulty flame rod, a clogged flame arrester, or a problem with the gas supply.
Common Causes of Rinnai Code 72
- Faulty flame rod
- Clogged flame arrester
- Gas supply issue (low pressure or no gas)
- Faulty gas control valve
Applicable Rinnai Models
Need a Pro to Fix Rinnai Code 72?
A licensed HVAC technician can diagnose and fix this issue quickly.
Find a Licensed Tech Near You →Replacement Parts for Rinnai Tankless Water Heater Code 72
Flame Rod OEM: RIN-1100010000
Flame Arrester OEM: RIN-1100020000
Gas Control Valve OEM: RIN-1100030000