Navien · Water heater
E010 Abnormal air pressure
What this code means
The unit is detecting incorrect air pressure, usually pointing to a venting restriction.
Most likely causes
- Blocked or obstructed vent pipe
- Debris in the intake or exhaust terminal
What to try first
Inspect the vent pipe for obstructions and clear any debris found.
Safety note: if this code returns after one clean reset, stop resetting it — repeated lockouts usually mean a real fault that needs a licensed technician. Never bypass a safety switch.
FAQ
What does Navien error code E010 mean?
Abnormal air pressure. The unit is detecting incorrect air pressure, usually pointing to a venting restriction.
Can I fix Navien code E010 myself?
Usually not. Inspect the vent pipe for obstructions and clear any debris found. If the code returns after one reset, it needs a licensed technician.
What causes Navien code E010?
The most common causes are: blocked or obstructed vent pipe; debris in the intake or exhaust terminal.
Other Navien water heater codes
All Navien water heater error codes →
Other water heater brands: Rheem · Ruud · Rinnai · Noritz · Takagi · A.O. Smith · Bradford White · State / American · Generic electric · Generic tankless
This information may contain errors or not apply to your exact model — always double-check it against your appliance's own manual before acting. If there's any chance of a gas, fire, electrical, carbon monoxide, or other safety hazard, stop and call a licensed professional or the appropriate agency (e.g. your gas utility) instead of relying on this page alone.