Troubleshooting An E8 Error On A Fogatti RV Tankless Water Heater

Question:

My new fogatti water heater keeps having a E8 code. What do I need to do to fix it?

asked by: Brent

Expert Reply:

The E8 error on a Fogatti RV Tankless Water Heater # LSB44FR indicates a wind pressure switch failure. This sensor is there to check that the unit is properly venting out of the exhaust pipe. Most likely the sensor itself is bad but there are a couple of things you can check before reaching out to Fogatti for a warranty call.

1. First check the power and ground. If the unit isn't receiving a full 12 volts or the ground connection isn't secure then the unit could throw up errors or function incorrectly.

2. Check the exhaust vent to make sure it's not being blocked or clogged with anything. If the vent is being blocked the exhaust will back up in the unit and cause an error.

expert reply by: Kevin C