It worked for me the time a month ago. But now it’s not working.

helpful, ty

After I add water into the boiler from zero, I got an error message saids “air”. Does that mean I need to bleed air out?

Thank you for the explanation and visual guide. This has corrected my E.351 error code, and the unit is now providing heat and hot water.

I also live in the northeast and just recently moved into a new home with a navian combi boiler. been having same issue with thermostat and I’ve never had radiant heat before. I upped the amount to 143 because it was cold in here. What should the temperature be? You had it on 180 F - isn’t that high? Help.

I am in the UK and I have not been able to find the ball valves mentioned in this video allowing the service engineer to easily attach the water flushing pipes. Can anyone recommend a supplier. No problem to import if necessary

Worse than biden

Or you're just a dumb MAGA'T who doesn't understand much beyond a 3rd grade vocabulary

COMMIE KAMALA got to the TOP by lying on her BACK and her knees 💯 fact!!

I also got this error code; somehow my Navien Combi does not have a valve that could be pushed up like in the video. Any suggestions?

Hi thanks for the video it still working today?

Mine dosent have enough pressure coming out, how come?

E351 generally happens when water is shut off in the building and there is a pressure loss.Unplug navi and run hot water for a minute or so then plug it back in and it should go away and unit should start working properly

I have no lever like you.

I have two hot and cold inlets and outlets - a domestic line and a heating water line. Which do I attach the circulation hoses to for descaling? Do i need to shut off all the lines?

Ray your the best, best video on navien on the web

did you hook up the hose? if so which one the continuous or the smaller one you use with the pump?

I am installing a Navian 240 as a replacement to an existing boiler. My current system has a traditional water tank, and a circulating system ( which I am not currently using) The manual shows both an installation using the tank heater, and a circulating system without the tank. I called Navian, and they suggested I would have better efficiency directly looping the water without the tank. If this is correct, then should I use the current 1" supply which supplies the whole (5600sf) house, or feed through the current 3 1/2" returns, and use the 1" as a return line. Thanks, Bob

What size are the threads for the hose?

Thank you!!

Fixed my issue, quick to the point video, easy fix thank you!

This was a life saver, thank you for your clear instruction! Great video!!! <3

Bump it up to 180 it will definitely get you to the temp you want

Thank you mine has a horizontal lever but it fixed my problem in 10 seconds I stoped at 19.5 psi and restarted the navian

You only did one side. lol

Can tell me where you connect the thermostats for zones in the boiler?

Good informative video! For a combi unit do you need to flush out both the domestic hot water and central heat exchangers? In other words do a one hour flush for each the domestic hot water and central heat? The central heat pipes are usually 1" versus the 3/4" for domestic hot water. So how is the central heat side flushed?

Keep saying furnace. It is a boiler and it is outside temperature sensor not thermostat

Worked ASAP no issues!

I wonder if you extended over the stairs for a small office area.

As a Texans fan, I hope Lamar ends the Swift era.

Just credits someone do this video. so we will know that you aren’t stealing video

This worked for me. Just added a bit of water to fix E351 error. Restarted system....and now I have heat! Thanks!

We're having the same problem except our temp is already set to 180.

Can you show the filters too? I am not sure where they are or how to clean them. Also what did you add to the water flush solution? Any descaling chemical or anything??

My temp outside is currently -31 I did that and verified with this video hopefully my home will heat up

He also took a while to tell you to run vinegar through it

Does video is very he did not tell people to turn the he should have cleaned the filters he's jumping all around it's going to be confusing to people dangerous

Thanks for your video. Read some of the comments where people are complaining about not having enough heat. I have yet to read the manual but I'm sure there are set points and possibly what is called parallel shift to keep the supply water hotter or colder relative to the heating curve based on outdoor air temperature, to help compensate for heat losses of any building.

Does ur backflow leak back

I have a Navien 190/080 combi boiler goes off on thermostat but keeps running on/off every few minutes

If I have been filling my system back up but every 3. To 4 months it comes back does that valve need to be replaced is it lfailing to regulate the water pressure?

*PromoSM* 😪

Thanks!

Thank you!

So cozy!! :)

Do you like the Navien Combi? I had one installed several year ago, and I also pay to have it flushed every fall, but I feel it’s a money pit.

amzn.to/40Aiyeb

Could you provide the link to purchase the pump you used?

How much was your sensor? Before watching your video, I got E353 fixed by a plumber and charged me CAD200 for the sensor....plus another CAD200 per hour( labor)😭.