Jul 15, 2019 · Hi - I have a relatively new (month or two) Navien NPE-240A. In the last week I've twice had it give no hot water. I inspected the unit and it said "E003" which means "ignition …

Oct 22, 2019 · E003 is an ignition failure code. I had this happen to me shortly after our Navien NCB-240E was installed. As the winter settled in, we started using a lot of gas around the …

Jun 6, 2023 · Hello, like the title says I have a 2 yr old navien tankless and it’s showing code E003 and not providing hot water. My home is a new build and we have hard water in our area.

Feb 5, 2023 · YouTube videos suggest a possible low gas pressure issue but that is just a guess. I will definitely ask the annual service person to check the static pressure when the unit is off …

Apr 25, 2022 · The best thing to try for now is to call Navien tech support. The wait times may be long, but ive found their techs are super helpful and patient when it comes to helping you …

Sep 10, 2019 · trueI posted about this previously here. So - I have a recently installed tankless. Over the course of maybe 3 months it has given me "E-003" "ignition failure" errors maybe 4 …

Jun 1, 2024 · Just like the title says I have an error code E.003 and suffice to say I'm not sure how to fix it. I looked online and it says it might be a couple…

Dec 25, 2020 · Tries to ignite for a minute or so then errors out with 003. Do I need to clean these better or is there something else? Of course being Christmas Day Navien tech support is …

Apr 2, 2021 · After 4 months of heating the water our combo unit threw a E012 error, then E001 and then E003. We have had technicians come out for 4 weeks and keep guessing what is …

Oct 28, 2022 · Navien tankless water heater ignition issue. I am a project manager for a home building company and recently built my own home. We decided to go with a tankless water …