I have the Navien NPE-210A (A=Advanced) set for internal re-circulation The advanced models have an built in re-circulation pump, i thinks a great feature - no reason to pay for an advanced model and not use it - just my honest opinion. Each year its recommended to clean the following: 1: Air intake filter 2: Water inlet filter - the one at the angle he removed 3: Condensation trap aka "dirt trap" yes it needs to be cleaned - its not on the unit for decoration 4: Re-circulation pump water inlet filter - right next to the condo trap 5: De-scale the unit - I use vinegar *3 filters + condo trap aka dirt trap *Descale the unit Monitor the O-rings - my condo trap o-ring needed to be replaced after approx 5 years. I hope this information was helpful. Kevin

Great video. Just finished the flush myself last weekend. one thing worth mentioning ... don't forget to turn the gas back on! For someone following this video step-by-step, this part was missed at the end. But don't worry, your unit will let you know haha

I love it that you really take time to explain and show us step by step

Thank you for producing a very useful, informative maintenance directive. Your camera person did an excellent job as well!

Thank you! Thank you! Thank you! This was a very detailed, clear, and easy to follow video. I just serviced my water heater (Navien 240N), and everything worked out perfectly. The only comment I would make is to hold the pump in the bucket when draining. Otherwise, you will have a mess of vinegar on your floor. Thank you again for this very helpful video.

Thank you for this excellent tutorial. You are certainly a good instructor.

What a fantastic video, thank you! Very informative (and you even threw in a washing machine tip 😉). Much appreciated!!

Thank you for a good step by step video. A couple of items I noticed you missed... 1st, as mentioned in other comments, turn on the gas valve when you are done, but that is the very last thing you do. 2nd, when you flush the heat exchangers, you have to have the unit ON! If you don't have power to the unit you'll only flush the valves and the lower part of the unit. The power opens servos that allow the vinegar to get up to the heat exchangers. The unit may try and start and throw codes about not having flame, but that's ok. 3rdly, after you flush the vinegar out, turn the unit off for 30 min, so the system can reset.

@innovagreenbuilders8141

4 жыл бұрын

Steven Jarrard Your comment is at odds with Navien’s operation manual. The step by step instructions say to turn the water heater off while you flush the heat exchanger.

@stevenjarrard2453

4 жыл бұрын

@@innovagreenbuilders8141 it may be so, but I followed the instructions on the video and still had the problem, had to call a professional out and that's when I found out what has to be done.

Thank you!! One of the best do-it-yourself videos out there!!!!

Thank you! This is an extremely informative video. Appreciate that you took the time to explain how to flush out the water heater.

Excellent! More light would be a huge plus but the content is exactly what is needed.

Thanks, just watched your video to remind me the steps from the last time I did this. One thing you forgot to mention though is cleaning out the Trap, the 2 inch White plug center bottom

Very good video. Went step by step. Just finished. Thank you.

I like the tip about partially removing the screw on the top of the tank so that you can easily remove the air filter. Why did Navien ignore this issue? I like your video. It is very informative and detailed and the audio and video are great. As I watched your scale removal procedure I shook my head knowing that I could have done my yearly maintenance on a tank water heater in 5 minutes. I have owned tankless water heaters for 15 years and every time that there is an event that causes the electricity to be shut off (earthquake or power failure) I curse the day that I got a tankless.

Great video, and very informative. I’ve same system and wanted some details. Thanks again.

Hey. You the man Thank you so much I'm installed my navien now . Working perfect for now. I'm going back to install the other 2 system more Thank you

Great vid..thanks was really easy the way u described it...great job bro!

Thank you sir for posting this video. I purchased a Navien NPE-240A about a year ago and thanks to you, I now know how to perform the annual maintenance myself instead of hiring a pricy plumber to do it for me. Thanks again!

@kimberlytetrault2054

5 жыл бұрын

Do you know if warranties with Navien are still honored if we do them ourselves? Or do we need documentation from a licensed plumber stating they did the maintenance in order to keep warranties valid?

I am just used to putting a tee where you have your 90 and putting drip leg on tee... all the best!

Want to say Thank you for great video.

Great tutorial! Thank you!

Clear tutorial. Thank you.

Great job! I did this last year, and getting ready to do it again today! Watched again just to refresh. Thanks for your help.

Best cleaning video yet! I didn't flush out the vinegar after I did it... but that doesn't ruin anything it just makes vinegar come out the appliances? Oops!

Excellent video! Thank you!

Thanks. Very helpful and well done.

Very helpful vedio. Thanks!!!

This was extremely helpful! I had one of these installed in my shore property this year. Do you have any videos on how to winterize the Navien?

Thanks for the Great Video😀

Thanks and great video! Any videos on flushing a ch 240 combo boiler would be appreciated.

Excellent!!!!!!!!!!!!

I have an NPE-210A Navien that was installed in February 2015. A plumber installed a check valve about a month later because any cold water draw- sink, toilet flushing, etc. would make the Navien fan run. That seemed to solve the problem until this year. I flushed it myself with distilled vinegar and checked the cold water inlet filter and air filter- both were clean because although I am on a well, I have a sediment filter and an Ecowater water softener. After the flushing process and cleaning out the vinegar according to the manual, the problem of the cold water draw making the fan come on returned. A different plumber came out and changed the check valve and was sure that was the problem. It was not- the fan now again runs whenever water is used. No error messages have ever shown up and the heater works fine. That second plumber was supposed to come back but never did. No idea why the flushing, which has been done yearly, would cause this problem to return.

Thanks! My Navien unit was installed in 2016 without the Navien Easy Valve Kit. It does have hose attachments directly above (closer to the unit) the hot and cold water shutoff valves. I think I can follow the same process you have shared in this video by closing the hot and cold water valves and hooking my hoses to the fittings above the water shut off valves (difference is that there isn't another valve between the unit and the flush hose attachment. Will this be a problem other than water draining out of the unit when attaching the drain hoses? (but of course with the main in and out valves closed).

Out of the two hoses, one of them must be a male to male connector. Also, be weary of a rogue hose flailing around. It's best to have one more secured down during the 45 min flush. Having a towel nearby is also a good idea!

Those credits were at the perfect speed.

I will service my navien tomorrrow i will follow steps on this video thanks

Thanks!

Fantastic video, great explanations and visualization of each part as you go through the process step-by-step. I had a Navien NR-240 installed several years ago and have only needed periodic cleaning of the air filter. The water filter has been clean each time I checked it, and there has been no diminished capacity. Imagine my surprise when I found the unit leaking water from the siphon! After reading the operation and installation manual, I learned of the possibility the cup captured sediment, so followed the instructions to remove the cap. The cap was nearly full of some sort of fly larvae, as close as the representatives of my water department can tell. As the regular maintenance does not mention the siphon, it appears the only reason to remove the cap is when it starts to leak. While I cleaned the interior of the siphon and the appropriate areas of the cap well, and even applied silicone grease to the o-ring, water still drips from the siphon cap. I would appreciate responses to two questions. Have you ever experienced anything similar to a larval infestation in the siphon cap? Have you ever had problems re-establishing a seal after removing the siphon cap? I contacted representatives of the company that installed my unit, but they are primarily an HVAC, not plumbing, company and acknowledged this was outside their expertise. I'm trying to avoid the expense of having to buy a whole new siphon just to get a new o-ring, and reportedly the only way to purchase an o-ring from a supplier is to purchase 100 at a time. I like o-rings as much as anybody else, but don't have much use for 99 extras. Any insight you provide would be greatly appreciated, and thanks again for doing such a fine job with this regular maintenance video!

@kenstewart687

5 жыл бұрын

James Duckett Go to a farm supply store or farm equipment parts department to but your O-ring.

The last part are you making a salad lol thanks for the video

Love this video but I have an issue. Once I start the pump the vinegar starts to flow in and back out the hot water side fine. But after 6 seconds the flow slows to almost nothing. The pump is new and so are the hoses. Any help would be great. I just cleaned up and reset my boiler. So it's running fine. I just know it's not 100% clean

how do we clean out the neutralization tube and/or find new media for the neutralization tube?

great video! very informative. can you do a video on how to bleed air using thus system? I hear banging in my pipes I believe is from air trapped. I'm not sure how to bleed it out.

@innovagreenbuilders8141

7 жыл бұрын

Thanks for the response! I see in your post above that this system also provides space heating. Is the banging from the baseboard pipes or the domestic water pipes? We usually use a separate space heating system in our new construction homes but at my house I have a boiler and baseboard radiators so I could do a video on bleeding air from the system at some point.

Is there annual maintenance for the Navien NHB condensing heating boiler models?

my navien recently started having issues. 1) usually in the morning before shower to get to work. It takes about 10-15 mins to get hot water (2nd floor). But once in the shower it would scold me with cold then hot so it's turning on and off hot and cold every minute or seconds. Do you have any idea what would be causing this issue?

Whoops. My bad, I see it. Cheers mate from Canada.

Does the water heater switch need to be on to flush the heat exchanger or can you leave the switch off while flushing the heat exchanger with vinegar?

1 thing you did not mention is to clean the condensate trap. It's the white cap under the unit with the metal pin. Make sure you have something to catch the water!!

@SeanFuller

6 жыл бұрын

What is the condensate trap for?

@colineyeball

5 жыл бұрын

Sean Fuller this collects the condensation from the unit during heat up and cool down

@pablogaviria9265

3 жыл бұрын

Yes. Flame Rod and Ignitor Electrode Cleaning as Well .

Should that o ring be lubricated on the water filter

What does the red M with arrows around it mean? Mine won't run. There not an error code for the red M.

Thanks for the informative video. I have a navien unit myself and it's been such a pain to do routine maintenance. Had to pay my plumber but now that I've seen this I'll try it myself...also any idea why I can have hot water but no heat? Trying to figure it out myself..

@innovagreenbuilders8141

7 жыл бұрын

Glad the video helped! What do you mean by hot water but no heat?

@MY-rl8hu

7 жыл бұрын

I meant I have hot water but I'm not getting heat from my radiator. I recently turned my heat on but not getting any heat through my pipes. Called navien and they recommended to call the installers.

@jakobtech635

6 жыл бұрын

you should listen to them call the installer you obviously aren't qualified to work on it and just because you've seen a video does not mean you should do it. Who is the navien going to believe you or a licensed contractor who installed especially when it comes to the warranty if there is one not trying to sound rude just logical. service/maintain 100+ of these water heaters every year not to mention what we install every year.

@LemonySnicket-EUC

5 жыл бұрын

@@jakobtech635 whatever

What if they did not install the ports for descaling? Is there any other way to do it

SEEING THAT FOOT AT 20:38 WAS CREEPY, at first I thought was yours.

Mine got heat inlet and outlet and domestic water inlet and outlet. Should I do it all the same time or separately?

Will a 1/3 HP sump pump safe to use to flush out Navien heat exchanger ?

The other videos i've seen (i have a NPE-240S) said that I need to turn the internal recirculation pump from "out" to "in" or the other way around, (can't remember) before starting the flush. Is this true because it doesn't look like you adjusted the settings on the recirculation pump prior to flushing. Anyone know about this, and if the pump settings need to be changed prior to flushing?

Great video. Question, what was the purpose to opening all the hot water faucets if you are isolating the system from the house?

@innovagreenbuilders8141

5 жыл бұрын

Navien wants you to open all of the hot water faucets because even though it's a "tankless" water heater, there will still be residual water in the heat exchanger that you will need to drain out in order to flush it properly. When you cut off the cold water supply, then open all of the hot water faucets, you should be able to clear the water heater of almost all of the water in the system. I suppose it would work if you shut off the hot water valve out from the water heater and drained it from the service valve but that's not Navien's procedure and I wanted to show the process how they depict it in the operation manual.

@frankbiz

5 жыл бұрын

Great, thank you!

@youdontkillmoney7213

4 жыл бұрын

@@innovagreenbuilders8141 thanks for the step by step, baby steps. immensely useful. a clarification needed: when you open hot water faucets to drain the navien of residual water, how long or at what point do you Turn the hot water faucets back Off again?

@innovagreenbuilders8141

4 жыл бұрын

youdont killmoney you can leave them open while you flush the heater and then close them when you’re done.

I have a unit that's 4 months old same model however it keeps cycling off after 4 seconds of flame I have adequate gas adequate water supply adequate air the control board does not appear to be burnt or sustained heat damage anywhere any ideas?

Im getting only yellowish hot water and clear cold water. i have yet done this maintenance but i will do so once i get the pump. But could the discoloration be due to not replacing the condensate neutralizer? If so would you also have a video on how to replace it? Thank you.

@innovagreenbuilders8141

7 жыл бұрын

The condensate neutralizer shouldn't have anything to do with the color of your hot water. It's just changing the acidity level of the condensate that results from the efficient combustion process. I would definitely de-scale the unit.

Should I be worried if my combusting light is on??

I have baseboard water heat that this system works on as well. are there any valves I need to close before I do this maintenance?

@innovagreenbuilders8141

7 жыл бұрын

I think that the best answer is that you should drain the system completely before performing any kind of service on the water heater. After you shut off the water heater and the gas and turn off the cold water valve, you'll want to hook up a hose to your baseboard system drain valve and open the bleeder valves to drain the system. Start with the bleeder valve farthest from the water heater and work your way back towards it. However, once you turn off the cold and hot water service valves you have isolated the unit so in practice I don't see why you wouldn't be able to flush the system without draining the baseboards.

I am having trouble removing the cap on the inlet water filter. Could you tell me the specific type of pliers to use that won't damage the cap? Thanks!

@innovagreenbuilders8141

6 жыл бұрын

I used regular channel lock pliers but I would suggest soft jaw pliers. Here's a link: www.homedepot.com/p/HDX-10-in-Soft-Jaw-Pliers-66011/204277473?cm_mmc=Shopping%7cTHD%7cG%7c0%7cG-BASE-PLA-D26P-Plumbing%7c&gclid=Cj0KCQiA0b_QBRCeARIsAFntQ9o5ZvyH6mZbxlmpMp6OuNDCOdAwiwWw8id34Hwps9k5n5SOQDfhRnAaAuB-EALw_wcB&gclsrc=aw.ds&dclid=CJ2PtL_QyNcCFVgHNwodXncIVw

@virjog95

4 жыл бұрын

I'm having trouble loosening the cap on the inlet water filter as well. I specifically bought the channel lock pliers to help, but the cap isn't budging at all. Did you have any luck?

After using it for 3 months, I am experiencing water pressure drops after I turn on cold or hot water for 3 seconds. Even when I turn off the heater use code water only, I still got pressure drops. do you think I need to give the system a flush? Or do I need a expansion tank before the cold water supply line?

@innovagreenbuilders8141

7 жыл бұрын

Hey Ken, my plumbing knowledge is fairly limited. I just created this video to show the people who buy our houses how to maintain their water heaters. I think you should call a plumber you trust. I will say that I added an expansion tank on my system at home because with a normal water heater you have 40 gallons worth of space where some expansion and contraction will happen without severe pressure increases so I wanted to play it safe. If you're experiencing pressure drop, I don't think that an expansion tank will solve the issue since the expansion tank usually safeguards against pressure increases. Again, my plumbing knowledge being limited, I would think that you might be experiencing pressure drop because there might be some scale or sediment built up inside the water heater but if you haven't had it that long it's not incredibly likely unless you have really hard water. Flushing it out and cleaning the filters wouldn't be a bad idea though just to make sure. It's also possible that the water heater is undersized for your house or when it was replaced someone didn't fully open up every valve. I would check all of my valves to make sure none are partially closed too.

@Bbking4988

7 жыл бұрын

Innova Green Builders thanks for your tips, the main valve is halfy close by someone. Opening it fully fixed the problem.

@ltsgarage7780

6 жыл бұрын

Ken Liang Neither one!!

@lighthousemurphy7498

2 жыл бұрын

I changed 2 shower heads and that allowed better hot water pressure in the showers from the Navien. Had some cheap low flow ones before. I also have a dual water valves at the bathtubs instead of a single valve. We have slightly elevated cold water pressure and I think that somehow affects the "call" for more HW at the facets/showers.

Saved me another week without hot water and a service call. Clogged air inlet shown as Error code 021

If you turned your phone sideways, you would not have 1/3 of of a video

I also see a re circulation motor don't you need to shut off the water to it during the flush?

@innovagreenbuilders8141

7 жыл бұрын

You're supposed to shut off the water to the whole unit and power the whole appliance down.

@gbrown1067

7 жыл бұрын

actually is you have a re circulation unit you also need to shut off the water to that line also. Inside there is a valve to be turned. This stops the vinegar from flowing thru the circulation line thru the house

@innovagreenbuilders8141

7 жыл бұрын

I don't have a recirculation line hooked up to the unit though. I don't use it in that mode. I just use it like a regular water heater.

what about pulling the pin and cleaning the sediment condensing cup?

@innovagreenbuilders8141

7 жыл бұрын

I'm not sure exactly what you mean by "sediment condensing cup." I clean out the cold water inlet sediment filter around 6:13 if that's what you mean.

@gbrown1067

7 жыл бұрын

you see the white round object underneath with the pull pin? that is supposed to be removed and cleaned out also

@innovagreenbuilders8141

7 жыл бұрын

Yeah that's the recirculation inlet filter. We haven't been putting the recirculation units in the houses we build so I didn't show cleaning that in the video. Plus I don't have a recirculation line hooked up to the unit and I don't use it in either external or internal recirculation mode so there's nothing flowing through it to cause it to build up sediment.

@gbrown1067

7 жыл бұрын

it is not the recalculation inlet filter it is "condensed water clean outlet" it need to be cleaned or it will kick a code

@innovagreenbuilders8141

7 жыл бұрын

G Brown I went home and looked at the unit and I see the port you're talking about now. I couldn't find anything in the operation manual that says you have to clean it as part of the normal maintenance routine and I couldn't find the error code that would be associated with it. Is this something Navien has told you to do? For the NPR unit? Do you just unscrew it and run it under water like the other filters?

I did all this but after 2 weeks my water is back to running cold. SHould I get a new unit?

@edwardsmith4353

5 жыл бұрын

Call a maintenance guy!

Why do you need to open all the house's hot water faucets if you can shut off all the hot water to the house using the local, basement shut off?

@innovagreenbuilders8141

7 жыл бұрын

It's just easier to drain all of the water out of your plumbing system that way. It's like a straw filled with water and your finger over the top of it. The water will hang in there unless you remove your finger. I like to have the whole house drained.

Good video but I don’t think you need to open all the hot water faucets because when you do the flush you isolate the house from the unit and the vinegar is just circulated through the heat exchanger so it serves no purpose. Thanks 👍🏻

@innovagreenbuilders8141

5 жыл бұрын

If you don't open at least a few hot water faucets you might not drain all of the residual water out of the unit. Even though it's a tankless water heater, there's still going to be a fair amount of water in there. It's kind of like holding your finger on top of a straw filled with water--when you take your finger off the water drains out. That might not be a huge deal, but you will want only the vinegar to flush the exchanger, not a mixture of vinegar and residual water. Opening the hot water faucets is part of Navien's process for draining the water heater per their operation manual.

@frankbiz

5 жыл бұрын

Innova Green Builders, Great, thank you!

FYI braided wm hoses are still rubber inside the braids do nothing but look pretty and dont last any longer

@innovagreenbuilders8141

4 жыл бұрын

They're rubber inside, but the braids make them much more resistant to bursting, so they last a lot longer than regular rubber hoses. Here's a site that provides a good explanation: structuretech1.com/rubber-washing-machine-hoses/

2nd vid I've seen with no 3" dirt pocket on gas?

@innovagreenbuilders8141

7 жыл бұрын

If you stop the video at a place like 7:16 you can see that I have the drip leg on the gas pipe that comes down from the ceiling like you would do when running a flex connector to the appliance but I just hard-piped it from there so you just see the 90 degree elbow right underneath the unit.

Your video is informative but video is dark and hard to see some points.

Great Video but you forgot to tell me to turn off the faucets that you told me to open when flushing.

@NR-dc7vv

3 жыл бұрын

Yeah he did, he clearly says it near the end, "...or else we're taking vinegar showers"

I am still in the dark...

*Don't mess with gas* -- get a pro. Pay him now or pay for it later when the homeowner's insurance company rightfully refuses to pay for a new house.

@innovagreenbuilders8141

2 жыл бұрын

Not sure what you mean by "mess with gas." Every homeowner should understand how to properly shut off the gas supply to their appliances. It is also helpful to exercise ball valves periodically. All of the steps in the video above are laid out in the Manufacturer's User's Information manual--there's no "messing" with anything.

Helloooooo