Fogatti Tankless Water Heater E6 Error Code means overheating failure. The controller will flash this fault code when the water temperature remains above 176 degrees F for over 3 seconds.
Due to the following reasons, the error code E6 will appear on the display:
- Inlet water temperature too high
- Inlet water flow too low
Below, I will show you how to reset the fault code E6. Till then, keep scrolling.
Troubleshooting Fogatti Tankless Water Heater E6 Error Code
Let’s go to the troubleshooting steps straight.
1. Inlet Water Temperature Too High
Because of too high inlet water temperature, the fault code E6 will appear on the controller display. Generally, the inlet water temperature will be too hot if:
- You set the temperature to a higher position
- Defective high-temperature thermostat
How To Fix:
You can reset this error code by shutting down the unit and the shower directly. So, try it first.
Next, set the temperature to a lower setting. Press the down button on the remote control to decrease the temperature.
If adjusting the temperature or shutting down the unit brings no luck, I bet the high-temperature thermostat is at fault. In this case, you must replace the high-temperature thermostat. Check the following tutorial to learn how to replace this component:
2. Inlet Water Flow Too Low
Due to too low inlet water flow, the unit will provide excessive hot water at the outlet. As a result, the error code E6 will appear on the display and shut down the water heater. Generally, a restricted water filter is responsible for too low water flow.
How To Fix:
First off, increase the water flow to resolve this issue.
Next, inspect the inlet water filter for blockage. Regarding this, unscrew the water inlet pipe and take out the filter. Then, clean the filter under running water.
Once you clean the filter, reinstall it. Finally, reinstall the water inlet pipe and turn on the water inlet.
3. Restart the Unit 1-2 Times
Press the power button on the controller to restart the RV water heater. You can do it 1 or 2 times. If the restarting procedure doesn’t bring any luck, contact Fogatti at firstname.lastname@example.org.
Overheating failure is the meaning of error code E6. The fault code E6 will appear on the Fogatti RV Tankless Water Heater due to too high inlet water temperature or too low inlet water flow.
To reset this error code, follow these troubleshooting steps:
- Reduce the water temperature. Then, check the high-temperature thermostat and ensure it’s functional. Otherwise, replace the high-temperature thermostat.
- Check the water inlet filter for debris and clean the filter if needed.
- Restart the tankless water heater for 1 or 2 times.
Contact Fogatti Customer Service at email@example.com for further assistance.
Sohel Rana is an expert writer on plumbing, HVAC, and appliance repair & troubleshooting. Since 2020, he has written on these specific topics, though his writing journey began in 2018. To learn more about him, read About Us page.