Navien NPE-210A Girgling Noise

[jkisf]

Good morning forum members, I just had a Navien 210A2(NG) installed and it failed inspection due to the exhaust port being too close to the window.

Luckily, the managers at Reece Plumbing were super supportive and helped piece together a kit to have the exhaust and intake port ducted to pass code.

This is where the problem is occurring, after a solid week of usage without issues, it's now giving me an error code 110-01 for exhaust blockage, however there is nothing obstructing the exhaust side. Upon startup of the unit, there is a girgling noise for 10 seconds and it throws code 110-01, I removed all the water in the system through the valves however the problem still persists.

I tried contacting Navien tech support, however I am only being advised to reach out to a licensed plumber.

Do any of you plumbing gurus see any issue with this intake and exhaust setup I made? I followed Reece Plumbing's recommendations to install the duct work and made it look nice, but I just cant figure out the problem with it.

Any help is greatly appreciated in advance.

Thank you!

-J

 

[Breplum]

Your installing contractor should be taking care of 100% of everything.
Your Navien labor warranty is one year, but of course, if there is an installation issue, that will not be covered.
You can use a Navien Service Specialist (NSS) for full coverage...but make sure the pipes are clear.

 

[Sponsor]

 

[GReynolds929]

Exhaust pipe has to slope back towards the water heater so that condensation can drain out. The gurgle is condensation pooling in the vent blocking it. Like @Breplum said, your contractor failed the inspection because they ignored basic install standards and then had you attempt to finish their work. They should come back and fix their mistake.