What does the navien error code E302 mean?

Navien error code E302 means that the water pressure is too low. If your Navien is displaying an error code E302, check the water feeder valve and the water pressure and the water pressure relief valve. Replace any parts if needed.

What to do if your navien water heater has an error code?

Some problems can be solved with simply resetting the water heater unit (press the Reset button on the front panel) but other require more work. Below you’ll find the most common error codes for a Navien tankless water heater along with a suggested fix.

What does the navien error code e046 mean?

The unit will cease working if the exhaust temperature exceeds 230°F (110 °C) for more than 10 seconds. Navien error code E046 means that there is a short at the heat exchanger thermistor. To fix Navien error code E046, check the condition of the wiring at the heat exchanger thermistor.

What causes a navien tankless water heater to shut down?

Inspect and clean the filter in cold water inlet. Flush the heat exchanger. What it Means: Exhaust overheating. The unit will shut down when the temperature in the flue exceeds 149° Fahrenheit (65° Celcius). How to Fix: Turn off the water heater for 30 minutes and restart. Inspect and clean the filter in cold water inlet. Flush the heat exchanger.

Navien error code E302 means that the water pressure is too low. If your Navien is displaying an error code E302, check the water feeder valve and the water pressure and the water pressure relief valve. Replace any parts if needed.

What is the navien auto feeder valve error code?

Navien e351 error code E351 – Abnormal Auto feeder valve If the water pressure sensor senses low water level as the heating pipe pressure is low, the system stops operation of the boiler, and refills water automatically. If water is supplied by auto feeder valve open over 5 minutes, the error (E351) is detected and displayed on the front panel.

Is there an error code on my navien tankless water heater?

If you have no hot water, you may have overwhelmed your tankless water heater’s capacity or have at least one error code. This guide will discuss and go over the Navien tankless water heater error codes, their meaning, troubleshooting, and more.

The unit will cease working if the exhaust temperature exceeds 230°F (110 °C) for more than 10 seconds. Navien error code E046 means that there is a short at the heat exchanger thermistor. To fix Navien error code E046, check the condition of the wiring at the heat exchanger thermistor.