65 🟡 Repair Required
Rinnai Error Code 65: Water Flow Control Valve
⚠️ Your Rinnai water heater is locked out due to a water flow issue. It's safe, but needs professional attention.
How to Fix Rinnai Code 65
- Step 1: Turn off the power to your water heater at the circuit breaker for safety.
- Step 2: Check if the water pressure is within the correct range (20-80 PSI). If not, adjust it or call a plumber.
- Step 3: Call a professional HVAC technician to diagnose and fix the issue.
What Does Rinnai Error Code 65 Mean?
Error code 65 on your Rinnai water heater indicates a problem with the water flow control valve. This valve ensures water flows at the correct rate for heating. If it's not working properly, your heater may not function or could overheat, leading to a lockout. This is a yellow hazard level as it's safe to use your heater, but it needs to be fixed by a professional.
Common Causes of Rinnai Code 65
- Faulty water flow control valve
- Clogged or restricted water inlet or outlet
- Incorrect water pressure
- Wiring or electrical issues with the valve
Applicable Rinnai Models
Need a Pro to Fix Rinnai Code 65?
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 65
Water Flow Control Valve OEM: RIN-1000000000000