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Navien boiler error E003
Ignition failure. No gas supply or a failed igniter.
Serious · you can check this yourself
E003
Meaning: Ignition failure
What causes E003
No gas supply or a failed igniter.
What to do
Check the gas valve is open and press Reset. If it repeats, call a technician.
Can I fix it myself?
You can make the first check yourself, but stop there: this code can point to a serious fault.
If the code comes back
Book a visit and add the code to the booking. A technician arrives knowing which parts to bring, diagnoses the boiler for a flat $89 and gives you an exact quote before doing any work.
Same boiler
Other Navien boiler codes
Different appliance?
E003 on other machines
- Navien water heaterIgnition failure