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Good information!

Your amazing very detailed info thank you so much

Thank you -- had a code 10 on an RL75 interior unit and had the problem of hot water running cold after a few minutes. Cleaned out blower that was full of dead stuff. Saw a bit of debris in the exhaust line as well and cleared it. I couldn't figure out how to disconnect the blower, but was able to clean it out without disconnecting (with power off). So far, hot showers. A local plumber wanted $850 to clean the unit with no guarantee it would solve the problem or $4200 for a new unit. I had descaled a few times and cleaned out the water filter, but the blower cleanup seems like it's solved the problem. THANK YOU!

I have a problem with a rinni tankless water heater. Talked to tech support 5 times . They say it's the heat exchanger scaled up.and needs a new one. Been flushed every year. Working fine when I arrived flushed this time doesn't work after. I would like your opinion how can get ahold of you to tell you more details

That is a very thorough video. Thank you for it.

Hey tankless guy congratulations on your growth and certainly wish you the best in the future! Question for you... I am a homeowner I have Rinnai RU180in ... It's just over 3 yrs old. I have performed a flush on the unit so I think I'm good there. However, I'm getting hot water for about 15-20 minutes and then it goes cold for 3 minuites or so, and then returns back to hot. I have seen several videos on UA-cam where guys are taking out the blower and clean it out and put it back in. My unit doesn't a blower that you can easily access like the ones I've seen on UA-cam. Any recommendations? Thank you!

What I’ve been trying find out is does Rinnai make an attachment to cover the intake, the outdoor aspect, screen to cut down on the amount of larger insects from entering the unit? It can be a problem especially during years of a lot of moths or wasps, I think I can design one that won’t interfere with the exhaust. My intake/exhaust pipe is longer than the one shown since it’s about 13 years old. I’ve been looking for such an attachment pretty much everywhere.

Awesome video!!! why can't we use a gfci receptacle?

Hello I have a brand new rinnai tankless water I installed. The units blower keeps turning Off and on. It's a solid light, so it indicates water flow and flame present. Except I have no water running and no leaks. What do you think could be the issue? Any help is appreciated.

Are all the burner gaskets the same?

Yes there are so many negatives to a tankless unit now that we have heat pump units we need to rethink the need yes endless hot water but a fried circuit board and longer delay for hot water without a circ pump not the problem solver it was thought to be and burnin that fossil fuel

Good tips! My tankless has been running off solar power for the last 7 years. It's plugged into my solar power inverter and that powers the heater day and night.

can you use CSST? or only black iron?

Great info, helped troubleshoot our 7 year old Navien.

Sir what is the name of that part that you just cleaned the valve that has a 4 screws thank you

Thank you.

You definitely need a condensate line in cold climates. Example Alaska. Need a neutralizer in the drain line.

Great videos! So, i have a unit upstairs not near any drain lines, stacks, etc. i can get access to the wall below. Can i just run the 1/2” cpvc pipe down the wall to the lower floor and out the wall?

Your videos are the best. You have saved me a ton of money

Hey. What happened? I thought it was Mike the Rinnai guy. Now, it’s Mike the Navian guy? What happened to Rinnai? I noticed all the Mike videos are Navian now.

TANKful for your sharing on UA-cam. It allowed me to correct the issue and get my water hot again! Wonderful! A thosand TANKS! ;-)

Wow, what an amazing video, thank you soooo much, it was so easy to follow, I'm not a plumber, but a building maintenance fitter & love to know how to fix stuff..Australia...

rinnai says to leave the filter on when flushing

Do you still install Rinnais tankless water heaters

I've been following you for several years. I appreciate you sharing your knowledge!

Thanks brother! Great and useful video! 👍

Muchas gracias . Me ayudó bastante.

Suggestions for when the unit is older and the gasket under the flame rod crumbles?

Omg you’re the best. It took me too long to find your video for some reason because I was looking for cascade wiring not common venting!!! Maybe update the title to get more views. I was unsure which end of the cable needed to be used for the master and the slave and what to do with the female one one the end with 2 wires ? If you’re just using 2 machines you don’t need the 2nd wire?

So slow to make the point that it’s painful

Thx MIke. I plumbed for years. I've supplied a 1/2 gas line to my exterior wall. I've bought a 6500 watts Champion generator with a necessary 130k minimum BTU running capacity. It's a household line- maximum 2psi. The WC needs to be 5-7". The generator will be 20 feet from the house. My question, I bought a Maixtrol 325-3L. I'll puT a monometer on it and adjust to 7. I bought a vent protector for exerior. Will there be efficient flow for the regulator chosen? or do you have a better recommendation. thx, Russ.

Thank you so much! I had flushed my water heater, but accidentally was pumping into the hot outlet. That caused a piece of debris to get lodged in the impeller. Easy fix after watching this video!

Hey great video I have a Reu-2425 model. Does the unit actually need an external controller to run or can I simply set the dip switches on-site the cover of the unit for set temperature? Cheers and keep up the great video content

Thank you sir! Just what I needed

Love the videos. Do you have the video for the settings to make at the unit for the navicirc?

Easy Way to get a Broken/Brittle/Stuck Plastic INLET out of the Brass Housing - my plastic INLET was Brittle and Breaking when I tried to turn it with my Needle Pliers, and did not want to break it or force something into it breaking it more, Easy Fix - get your Multi-tool blade for plastic, carefully slice the plastic stem/tip to the brass base, (in the middle so you to half-circles). then get a something like a LARGE SCREWDRIVER OR KNIFE wide enough to reach both edges (about 3/4 inch wide), place the blade in it, and simply unscrew it out. No need for pliers, or forcing something in it.

Any advice for code 63

Mike I thought for a condensing tankless unit with pvc venting that the manufacturer’s want you to pitch the vent toward the unit at 1/4” per ft? I’m assuming so any condensate will make its way through the heat exchanger, into the trap, and then out of the unit that way?

I have searched high and low for that Pietro regulator but the closest I can find is F31052-2BS. I have no idea what the S instead of P means at the end. Can you tell me if this one is OK?

So I have a tank using a vertical vent shared with a nat gas furnace. How can I make this unit work with the Rinnai tankless but stil vent vertically?

Hey Mike! First of all thanks for sharing your wealth of knowledge on here. You’ve been a godsend for a junior DIY plumber like myself. I have a Rinnai question for you. I installed a RU180in for my home. It’s working great, however I let my curiosity get the best of me and accidentally entered some form of programming menu. Long story short, I changed some settings and would like to factory reset my unit. I’ve tried holding both A&B, power cycling the unit, etc. None of these seem to change it back. I’m locked at 110F max temp and have concerns other settings were changed. Is there a method to factory reset? If not, where can I find documentation that explains the advanced programming menu so I can verify all the settings? Thanks again, love the channel.

I'm trying to find the right flame rod kit for the gaskets for mine. is it not recommended to try to take it apart to clean if I don't have a replacement gasket??

I had a plumber come in and put in a dedicated return line from my kitchen faucet to the tankless. So the hot line goes from the tankless to the faucet. There's a loop maybe 20 feet from the tankless with a check valve in it and the arrow points to the tankless. The loop goes back to the tankless and into the cold water. There's a check valve about a foot from where the loop enters the cold water to prevent it from going back up that pipe. The loop goes into the tankless cold water inlet. The problem is that sometimes the water will just be lukewarm. I can touch the hot pipe coming from the tankless and it's hot. But it's like it keeps recirculating cold water into the pipe or something and never stopping. I'm pretty sure the tankless setting is 4B. I don't know if setting 5 is set to comfort or economy. The plumber who initially installed the tankless said it's a cold water sandwich. He is not the plumber who installed the loop. What's causing this issue?

That notch is at 11. I know, I know. Not important. Great video.

I have a tank water heater in a bedroom in my basement. It’s in a closet. The tank has gone out and I want to replace it with a tankless. It’s a long way to the roof. I want a condensing unit. Can I run the duel pipe until I get to the attic, then use a single PVC pipe to the outside on the roof?

Just fixed mine using this fantastic video for guidance. No more beep beep code 12. Thanks!

Can I put the condensate line into my water heater pan?

Thank you for your video. It saved me so much time.

First of all, Thank you for your videos and helping to make life a little easier. I was wondering , I just purchased an outdoor model like on your video. REU-VC2025W (V65e) can this unit be converted from propane to Natural gas? Or do I need to get a different unit. Mine is new in the box, never been installed. Thank you

Is there a video for installing the recirculating pump on the S2 model?