79 🟡 Repair Required
Rinnai Error Code 79: Fan Current Detection
⚠️ Your Rinnai water heater is experiencing a fan current issue. It's safe to troubleshoot, but call a professional if you're unsure.
How to Fix Rinnai Code 79
- Check for any visible damage or disconnection in the fan wiring
- Ensure the fan is not clogged with debris or lint
- If safe to do so, try resetting the unit by turning off the power at the breaker, waiting 30 seconds, then turning it back on
What Does Rinnai Error Code 79 Mean?
Error code 79 on your Rinnai water heater indicates a problem with the fan current. The fan is crucial for venting combustion gases and maintaining proper operation. This error might be due to a faulty fan, fan motor, or wiring issue. The digital display will show '79' and the unit will lockout, preventing hot water production until the issue is resolved.
Common Causes of Rinnai Code 79
- Faulty fan motor
- Wiring issue between the fan and control board
- Clogged fan or venting system
- Control board malfunction
Applicable Rinnai Models
Need a Pro to Fix Rinnai Code 79?
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 79
Fan Motor OEM: RIN-100142800
Control Board OEM: RIN-100142700