This was an exact replacement for the old one that lasted about 10 years. czcams.com/users/postUgkx7yWIKcrbA9KMHkGSfcgxW2lsjHT6B8Sh The top of my mitigation tube by my roofline was just a 90 elbow which allowed too much debris to fall down into the fan, eventually ruining it. Without this issue, I bet it would have kept running another 10 years. When I replaced this fan, I added an extra elbow joint so the top tube now it does a 180, which should solve that problem. The radon guys around here wanted to charge me a $300 diagnostic fee, then parts/labor (probably close to $600 total). I installed this all by myself in about an hour for the cost of the fan; it would probably be even easier/faster with two people. FYI the manufacturer's warranty greatly differs depending on whether you install it yourself (1 yr warranty) or have a licensed installer do it (10 yrs).
THANK YOU!!! I had horrible gurgling bubbling sounds. Getting error codes and no hot water or heat. I did this exactly as you said and no error codes and the unit is so quiet. It was so dirty when I took out the condensate trap. I believe this was holding all the junk in the system and water which cause the bubbling noise. Thank you so much.... I don't need to pay $175 for a service every year either as I will do it myself! Great educational video at the perfect pace.
This video is just what I needed. When I got a quote from a professional it would have been cheaper for me to just replace the whole unit every 5 or so years. I bought a pump, hoses and vinegar for about 80 bucks. Thank you.
Thank you for a very useful video. I watched it once, and then downloaded the Navien "User's Information Manual" from the corporate downloads page. I watched it a second time while looking through the manual. Considering how expensive the unit was to purchase, the extra bit of time seemed well spent. The manual does suggest inspecting and cleaning the "Strainer" on the space heating side. I guess I'll try it when I attempt to clean this unit. My unit has isolation valves on the boiler side between the unit and our floor manifold, so those will be closed too. The video is a great walk through and great confidence builder for a home owner, thank you.
Make sure to use soapy water/leak detector on top seal of heat exchanger, almost every unit I have tested has had a warranty covered exhaust leak. These units across all models have this issue.
Amazing video ...very helpful ...ime use to opening up heat exchangers n washing em that way ....first time today with this Navien and whoooooo u made it go so easily much appreciated 💯
Howdy, Liked your video and feel much more confident when I initially clean my new Navien! Towards the end of the video when your discussing not needing to flush the zone heating, I noticed an installed gauge. Would you be able to say a bit about this gauge and why it's installed ... my system lacks this additional instrumentation. Thanking in advance.
Very well presented videos. I clean multiple units once per year but I like to watch your videos prior as a good reminder of the correct steps. I do have a question if possible on my Navien CH-240 unit. On the hydronic side of the combi unit it has a strainer. I took that out and cleaned it and the residual water drained out into a bucket. I was shocked at how rusty and oily it was. Not sure if that's debris from around the burner or something that's inside all the hydronic heating pipes. You mentioned that the hydronic side shouldn't be descaled. Should I instead bring in a plumber to drain and clean the hot water heating lines? Many thanks.
@@jamestrezza5788 I ended up draining and refilled the hydronic heat side. That was a year ago. I just descaled the domestic hit water side and then cleaned the filter on the hydronic heat side. Once again the filter and inside of the valve in the hydronic heat side was pretty greasy/darkened with grime. I cleaned it up and put it back in. A plumber friend didn't seem concerned. The combi boiler is 10 years old and has been pretty reliable.
Thank you for the great video, question, same procedure for a ncb 210e model? Also, flush the boiler side too? Some people comment saying Navien recommends doing it,.. Thanks again brother great video
I work on these a lot. There seems to be a problem with the exhaust gasket that leads to a brown oil like condensation inside them. Would be a good move to replace during maintenance.
4:29 my isolation valves look a bit different and can’t be turned. Wish I could add a pic here for a visual. Can I just use the shut off on the line instead of the isolation valves?
I need to replace my cold water inlet screen, and both o-rings, but the manual only has a part number fro the center o-ring. i'm also looking for the following: the outer big o-ring p/n, and the p/n for the little plastic redish color part on the inside end of the filter screen, and a p/n for the rubber piece on the tip of the reddish colored thing. any advise? My local plumber wants to come do a costly service call, instead of selling me the parts I can simply replace DIY. My unit is a NAVIEN NCB-240E-NG
hi i have a navien ncb 240 combi boiler. I completed the flush on the domestic side without any issues but when i attempted to flush the main heat exchanger there was no circulation almost as if there was an internal valve inside that was closed. the navien boiler was unplugged when i was completing the flush, should i turn it on in order to have that internal valve open? any advice would be much apprecited. thanks in advance
I’m had this unit installed last year and this will be my first year for annual servicing. I’m trying to get a ball park price of what I can expect(is a fair) price for the annual servicing? Just really looking for a range and know that it will probably vary
So what about the “heating” related inlet/outlet ports on this combi 240? It didn’t look like Ray touched them. Are they somehow separated from the system so you don’t need to touch them? At one point THEIR valves still looked open. EDIT: he confirms they’re separate and don’t touch @ ~ 14:45.
Paid Facetime or "video chat" to attempt to fix 353 code error? I did reboot plug unplug system it did not fix it self. Called Navien tech support and was told they cannot do ove the phone trouble shooting? Happy to pay for this service. When a "real" certified service tech is called he does not know how to fix a 353 error code - he calls Navien tech support. Any ideas ?
My NCB240E doesn’t have a “dirt trap”… on the user manual there is something called “space heating strainer (pump drain plug) - is that the same time?! Doesn’t look the same on your video but is held by a pin similarly…😖
I saw one of your other Navien descaling videos and you didn’t open the hot water faucets on the other video. I followed that video and didn’t open the hot water faucets, will the descaling be ok or should I do another descaling and open the hot water lines? Confused
I just phoned three companies, one said do a flushing and maintenance every year, another said do it only every 3 years and another said don't do any service if it is operating okay. Who should I listen to???
Hey Ray! I've done everything to the teeth as you have shown here. I don't get anything coming out of the hoses. Please Help! Anybody has this problem before?
Hey ray, nice vids.... what happens if you have a return pump in the tankless. Would we want to be able to run vinegar through the return pump to keep scaling happening in that part?
Go to pipe doctor on you tube ALL NAVIEN HEATERS LEAK CARBON MONOXIDE THERE IS A CLASS ACTION LAW SUIT COMING ALL HEAT EXCHANGER LEAK CARBON MONOXIDE PLEASE TAKE CAUTION
I have a Navian and every time I turn the water on, the unit makes a loud humming sound for approximately 30 seconds. Do you know what that may be? Thanks so much!
Please help! I keep getting error 035E on my Navien tankless. This error relates to the gas sensor pressure flow. I have checked the gas line, and the pressure seems ok. Somehow my device is malfunctioning the gas sensor device, we changed the sensor a few months back, and it worked fine for a few months, and now I got the 035E back. Do you know what is causing the gas sensor failure again? I am on natural gas, and my heating and hot water are through Navien.
My unit stop circulating domestic Hot water, I had to change the pump but still don't get hot domestic water only hot water for winter heat, does anybody know what should I do, I get flow circulating codes don't know what that means.please help, the unit is one year old.
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?
I have a question for you. I clean my Navien every year but lately when I turn on the hot water my system sounds like a engine cycling through. Hope this makes sense. Would you know what might be causing this noise?
Go to you tube pipe doctor from New York. There is a class action law suit against Navien units please check your heater they all leak CARBON MONOXIDE ALL LEAK FROM THE HEAT EXCHANGER
Hey Ray what size sump pump and flow rate to get? Also vinegar comes in different concentrations, do I get regular or extra strength for the 2 gallons?
I had the same problem when it was first installed. There was 2 things i had to address. One was the Exhaust and intake were a little too close to each other once they exited the house. I believe the code is 12 inches apart if im not mistaken. We had it like 9 inches. So we then changed the angle so it could have a total of 13 inches apart. The other was making sure the exhaust PVC pipe is pitched away from the Navien. (not towards) because that water from the exhaust has to drain away from the navien and drip towards the exit of the house. We did these both changes and now it works fine.. Good luck
Mine also flashed the 110 code. Our unit was 4 years old and I had no idea they had to be serviced. When I removed the air intake filter at the top of the boiler it was pretty plugged up with dead bugs and poplar fuzz (I believe this was the problem). The white distillate cap at the bottom also had a bit of sediment in it. The cold water intake filter was clean (little black tubular filter at the bottom of the boiler). I cleaned those 3 things and unplugged the unit for an hour while I performed the flush…. when I plugged it back in, the code was gone and everything works fine again. After 4 years without a service, there was next to zero scaling in my system or on the cold water inlet filter. Going forward, I will flush it every 4-5 years but I’ll be servicing the air intake filter and distillate cap every year which maybe takes 5 minutes. This entire process too me 1-1/2 hours and 1 hour of that was waiting on the vinegar to flush the boiler. Saves me about $500/year on a plumber and it only cost me a one-time cost of $110.00 Canadian to buy the sump and 2 washing machine hoses. I’m an older fella and I gotta say… I friggin love CZcams for stuff like this as well as the folks who take the time to make videos like this!
Incredible video, thanks for posting. Just did a full service on my unit and it all went well because of this step by step instruction.
I was terrified to even touch my unit until I saw this. It seems so simple I feel confident I can get this done. Thanks!
Raised as a Catholic, I was also terrified to touch my unit for the longest time. This video played no part in my enlightenment.
@@TrippKnightly 🤣
This was an exact replacement for the old one that lasted about 10 years. czcams.com/users/postUgkx7yWIKcrbA9KMHkGSfcgxW2lsjHT6B8Sh The top of my mitigation tube by my roofline was just a 90 elbow which allowed too much debris to fall down into the fan, eventually ruining it. Without this issue, I bet it would have kept running another 10 years. When I replaced this fan, I added an extra elbow joint so the top tube now it does a 180, which should solve that problem. The radon guys around here wanted to charge me a $300 diagnostic fee, then parts/labor (probably close to $600 total). I installed this all by myself in about an hour for the cost of the fan; it would probably be even easier/faster with two people. FYI the manufacturer's warranty greatly differs depending on whether you install it yourself (1 yr warranty) or have a licensed installer do it (10 yrs).
THANK YOU!!! I had horrible gurgling bubbling sounds. Getting error codes and no hot water or heat. I did this exactly as you said and no error codes and the unit is so quiet. It was so dirty when I took out the condensate trap. I believe this was holding all the junk in the system and water which cause the bubbling noise. Thank you so much.... I don't need to pay $175 for a service every year either as I will do it myself! Great educational video at the perfect pace.
Great Job in explaining this process clearly and concisely. Thanks for taking the time to put this video together!
This video is just what I needed. When I got a quote from a professional it would have been cheaper for me to just replace the whole unit every 5 or so years.
I bought a pump, hoses and vinegar for about 80 bucks. Thank you.
Two years later… this was a big help to me today. I was able to do it although the water inlet filter gave me trouble. Thank you for posting it.
You do a beautiful job of explaining things clearly and concisely. Great work!
This is by far the best instructional explanation I have seen for my Navien Cleaning....Thank you so much
I very much appreciate your clear concise explanation and detail, Thank You!
smart man. not many companies/people out there who FULLY know what needs to be done.
Thank you for a very useful video. I watched it once, and then downloaded the Navien "User's Information Manual" from the corporate downloads page. I watched it a second time while looking through the manual. Considering how expensive the unit was to purchase, the extra bit of time seemed well spent. The manual does suggest inspecting and cleaning the "Strainer" on the space heating side. I guess I'll try it when I attempt to clean this unit. My unit has isolation valves on the boiler side between the unit and our floor manifold, so those will be closed too. The video is a great walk through and great confidence builder for a home owner, thank you.
Thank you for making this video! Very easy to understand, I'm sure my NCB 180E is very similar!
Better info than I ever got from my plumber, Thank You!!
Very well explained ! Step by step
This fellow is awesome. Very helpful. Thank you for your videos.
Thanks for the video! Saved me some money having someone come in
Well done! Clear. Concise. Informative.
Make sure to use soapy water/leak detector on top seal of heat exchanger, almost every unit I have tested has had a warranty covered exhaust leak. These units across all models have this issue.
June 3, 2022 see y'all next year. And great tutorial
Great video man, I appreciate the guidance! My boiler will be getting some love this weekend!
God bless you, I learned a lot from you, you are the best teacher.
Amazing video! You saved us hundreds of dollars, thank you sir!
Wow. Great video and instruction. Thank-you. Can’t wait to see your thermistor replacement video
Great tips!
To all do not open the boiler to clean, as its a drag to purge!
Amazing video ...very helpful ...ime use to opening up heat exchangers n washing em that way ....first time today with this Navien and whoooooo u made it go so easily much appreciated 💯
Thanks, the only one I have been doing was descaling (only once, because we have such soft water).
Very well done. I am looking for suggested ways to clean the combustion chamber???
Thank you sir for educate us
Excellent instruction!!
What a great way to shoot a video tutorial!!!🙏🏼🙏🏼🙏🏼
Also your accent it’s so cool brother 🙏🏼respect!!
Howdy,
Liked your video and feel much more confident when I initially clean my new Navien! Towards the end of the video when your discussing not needing to flush the zone heating, I noticed an installed gauge. Would you be able to say a bit about this gauge and why it's installed ... my system lacks this additional instrumentation. Thanking in advance.
Very well presented videos. I clean multiple units once per year but I like to watch your videos prior as a good reminder of the correct steps. I do have a question if possible on my Navien CH-240 unit. On the hydronic side of the combi unit it has a strainer. I took that out and cleaned it and the residual water drained out into a bucket. I was shocked at how rusty and oily it was. Not sure if that's debris from around the burner or something that's inside all the hydronic heating pipes. You mentioned that the hydronic side shouldn't be descaled. Should I instead bring in a plumber to drain and clean the hot water heating lines? Many thanks.
Did you get a reply to that question
@@jamestrezza5788 I ended up draining and refilled the hydronic heat side. That was a year ago. I just descaled the domestic hit water side and then cleaned the filter on the hydronic heat side. Once again the filter and inside of the valve in the hydronic heat side was pretty greasy/darkened with grime. I cleaned it up and put it back in. A plumber friend didn't seem concerned. The combi boiler is 10 years old and has been pretty reliable.
Thank you for the great video, question, same procedure for a ncb 210e model? Also, flush the boiler side too? Some people comment saying Navien recommends doing it,.. Thanks again brother great video
Perfect video...just putting in an NPE240 A2 and I'm thinking it's the same procedure...is that true?
I work on these a lot. There seems to be a problem with the exhaust gasket that leads to a brown oil like condensation inside them. Would be a good move to replace during maintenance.
Excellent video. Well done. Very helpful!
Good video. very helpful.
can you please advise the name of the water pump and the model I will buy? Thanks
4:29 my isolation valves look a bit different and can’t be turned. Wish I could add a pic here for a visual. Can I just use the shut off on the line instead of the isolation valves?
Great video. Thanks.
Thanks for the great video! I have a 1/3 hp sump pump - would this be too powerful and potentially damage the unit? Thanks.
I need to replace my cold water inlet screen, and both o-rings, but the manual only has a part number fro the center o-ring. i'm also looking for the following: the outer big o-ring p/n, and the p/n for the little plastic redish color part on the inside end of the filter screen, and a p/n for the rubber piece on the tip of the reddish colored thing. any advise? My local plumber wants to come do a costly service call, instead of selling me the parts I can simply replace DIY. My unit is a NAVIEN NCB-240E-NG
What should be done if the white vinegar keeps coming out rusty, the vinegar should be changed to clean vinegar or not.
hi i have a navien ncb 240 combi boiler. I completed the flush on the domestic side without any issues but when i attempted to flush the main heat exchanger there was no circulation almost as if there was an internal valve inside that was closed. the navien boiler was unplugged when i was completing the flush, should i turn it on in order to have that internal valve open? any advice would be much apprecited. thanks in advance
Great video!
Can you do one for the model NCB-180E?
Super!!!! Quick question, the psi of my Navien is 9.0 when its cold and 17.0 when its working so is that normal?
This guy is cool
I’m had this unit installed last year and this will be my first year for annual servicing. I’m trying to get a ball park price of what I can expect(is a fair) price for the annual servicing? Just really looking for a range and know that it will probably vary
So what about the “heating” related inlet/outlet ports on this combi 240? It didn’t look like Ray touched them. Are they somehow separated from the system so you don’t need to touch them? At one point THEIR valves still looked open. EDIT: he confirms they’re separate and don’t touch @ ~ 14:45.
Yess thankyou , very much appreciated..
To get a first time cleaning ...is there a toll free number , I live in Ont Windsor
Paid Facetime or "video chat" to attempt to fix 353 code error? I did reboot plug unplug system it did not fix it self. Called Navien tech support and was told they cannot do ove the phone trouble shooting? Happy to pay for this service. When a "real" certified service tech is called he does not know how to fix a 353 error code - he calls Navien tech support. Any ideas ?
My NCB240E doesn’t have a “dirt trap”… on the user manual there is something called “space heating strainer (pump drain plug) - is that the same time?! Doesn’t look the same on your video but is held by a pin similarly…😖
I saw one of your other Navien descaling videos and you didn’t open the hot water faucets on the other video. I followed that video and didn’t open the hot water faucets, will the descaling be ok or should I do another descaling and open the hot water lines? Confused
I just phoned three companies, one said do a flushing and maintenance every year, another said do it only every 3 years and another said don't do any service if it is operating okay. Who should I listen to???
Hey Ray! I've done everything to the teeth as you have shown here. I don't get anything coming out of the hoses. Please Help! Anybody has this problem before?
Hey ray, nice vids.... what happens if you have a return pump in the tankless. Would we want to be able to run vinegar through the return pump to keep scaling happening in that part?
When I called Navien, they recommended that we descale the heating side. So that was confusing. Would it hurt to clean the heating side?
Go to pipe doctor on you tube ALL NAVIEN HEATERS LEAK CARBON MONOXIDE THERE IS A CLASS ACTION LAW SUIT COMING ALL HEAT EXCHANGER LEAK CARBON MONOXIDE PLEASE TAKE CAUTION
Hi, I had Do you spell my water heater? After I put things back together. No power to the unit any thoughts.
How much does it cost for a basic tune-up and clean-out in the North East USA?
Thanking you in advance for your reply.
Do you guys leak test the heat exchangers when you install? Because brand new ones have been leaving the factory leaking exhaust gases.
I have a Navian and every time I turn the water on, the unit makes a loud humming sound for approximately 30 seconds. Do you know what that may be? Thanks so much!
Please help! I keep getting error 035E on my Navien tankless. This error relates to the gas sensor pressure flow. I have checked the gas line, and the pressure seems ok. Somehow my device is malfunctioning the gas sensor device, we changed the sensor a few months back, and it worked fine for a few months, and now I got the 035E back. Do you know what is causing the gas sensor failure again? I am on natural gas, and my heating and hot water are through Navien.
So there is no need to clean boiler side of unit at all. not even every other year?
Ray, any updates on the above questions?.. love your step by step videos!!
I noticed that you used a black steel pipe on the condensing drain, I'm pretty sure you're not allowed to use black steel on it, you should use PVC.
My unit stop circulating domestic Hot water, I had to change the pump but still don't get hot domestic water only hot water for winter heat, does anybody know what should I do, I get flow circulating codes don't know what that means.please help, the unit is one year old.
great video! so you don't have to purge or worry about air in the system? thx
I think you do. Watch every video you can.
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?
Hello, how to resolve error 784-00 on that device, please, thank you ncb 240 130h please thank you
I have a question for you. I clean my Navien every year but lately when I turn on the hot water my system sounds like a engine cycling through. Hope this makes sense. Would you know what might be causing this noise?
Go to you tube pipe doctor from New York. There is a class action law suit against Navien units please check your heater they all leak CARBON MONOXIDE ALL LEAK FROM THE HEAT EXCHANGER
@@RAYMOND169 thank you very much!!! That is crazy unsafe.
Why do they have a shut off valve on the downstream side of the Maxitrol? That’s kinda useless.
I want to buy sump pump to clean our Navien unit, should I buy 1/6, 1/4, or 1/3 HP. Kindly advise.
You can use the small unit - it's not a lot of distance or pressure.
Hey Ray what size sump pump and flow rate to get? Also vinegar comes in different concentrations, do I get regular or extra strength for the 2 gallons?
Watched another of your videos - annual descaling. 1/5 - 1/6 hp sump pump, regular vinegar, 2 - 3 gal for 1/2- 3/4 hr.
Exactly, 5% 30%
@@kathyscott4671you probably meant 5% basic household vinegar (or whatever the % is) and then 30 min not 30%…
Are you sure you don't need to flush/descale the the boiler side? There are guys on CZcams doing both and that boiler side is always the filthiest.
Keep getting the e110 error code but the intake filter and exhaust are free of any blockages any idea what I should do.
I had the same problem when it was first installed. There was 2 things i had to address. One was the Exhaust and intake were a little too close to each other once they exited the house. I believe the code is 12 inches apart if im not mistaken. We had it like 9 inches. So we then changed the angle so it could have a total of 13 inches apart. The other was making sure the exhaust PVC pipe is pitched away from the Navien. (not towards) because that water from the exhaust has to drain away from the navien and drip towards the exit of the house. We did these both changes and now it works fine.. Good luck
Mine also flashed the 110 code. Our unit was 4 years old and I had no idea they had to be serviced. When I removed the air intake filter at the top of the boiler it was pretty plugged up with dead bugs and poplar fuzz (I believe this was the problem). The white distillate cap at the bottom also had a bit of sediment in it. The cold water intake filter was clean (little black tubular filter at the bottom of the boiler). I cleaned those 3 things and unplugged the unit for an hour while I performed the flush…. when I plugged it back in, the code was gone and everything works fine again. After 4 years without a service, there was next to zero scaling in my system or on the cold water inlet filter. Going forward, I will flush it every 4-5 years but I’ll be servicing the air intake filter and distillate cap every year which maybe takes 5 minutes. This entire process too me 1-1/2 hours and 1 hour of that was waiting on the vinegar to flush the boiler. Saves me about $500/year on a plumber and it only cost me a one-time cost of $110.00 Canadian to buy the sump and 2 washing machine hoses. I’m an older fella and I gotta say… I friggin love CZcams for stuff like this as well as the folks who take the time to make videos like this!
Any way to contact you ?
Boiler