Code 12 on a Rinnai tankless checking the flame rods

This will be a 4 part video on the Rinnai tankless heater code 12.
There is a few things that have to checked when a Rinnai gives a code 12.
You can call Rinnai Tec support for help if your not a qualified Tec.
Please make sure you only use a scotch brit pad to clean the igniter and flame rods, not and metal tool, file or knife
I hope this video helps.
Thanks,
Mike

[stevevet]

TTG, many thanks for taking the time to produce these videos. As a disabled Vet on a fixed income, your videos have taught me how to properly maintain my TTWH that allows me to save some cash. Your the best.

[Typlay]

I really appreciate everyone like yourself that make these how to videos. This video saved me a major headache of hiring someone to work on my water heater. Fixed in 10 minutes using these exact steps. Keep up that great work and thank you!

[royanderson]

Once again, Rannai Mike came to the rescue. I was having yet another issue with a 199 condensing unit. The burner would not stay lit, with the front cover in place. The unit worked flawlessly with out the front cover in place. After a few conversations, he determined that the wye connection sold with the unit to allow direct venting through the existing roof jack was at fault, saying to me that he’d had many problems with having the fresh air intake and exhaust air sharing the same pipe. My furnace closet location allows me to pipe the fresh air intake pipe over to daylight out above the door for the closet, avoiding having to add another roof jack. Problem solved 100%. I live in central California, just a mile down the road from Yosemite National Park. Mike does all of the problem solving phone calls and emails after working his normal day. I owe him a beer.

Thanks again Mike,

Roy

[dustinhourihan]

Dude. This is RAW PLUMBING POWER. Yo i got sent on a random call and no I don't do water heaters like that. But I'm a capable qualified technician. Thanks for the run through my dude. I am on my way to it now. If anything I think I'm not the first company to diag this heater. I think you just saved some dude from buying a new heater unnecessarily. Score one for the good guys (I hope)

[randyk]

I work for a gas company & your videos are SO helpful. Thank you so much!

[chinbad]

Thank You Mike!! I’m glad I couldn’t get anyone to come out on a Sunday. You saved me some dollars my friend!

[armyice]

Thanks! you helped me repair the boiler and avoid paying the plumber! greetings from Italy

[Hokahe]

Mike is a great guy! I emailed him a question and he took his time to give me a call to help troubleshoot my tankless heater. He even checked in a couple times to give some more advice on my issues. Thanks so much for your help!

[rpm]

Thank you so much for making this video and taking the time to go step by step till the issue is fixed.
I was able to fix my system without paying someone to come out to fix it while giggling at how simple the fix is for the $200.00 I'm being charged to fix it. Thank you

[BigOHavingFun]

Wow man. Your a class act and selfless at that. I read 75% of comments and most are saying how greaterul you are. Your parents would be proud of you sir!

Thanks for giving back to your fellow man. Your a true inspiration to others and it speaks volumes for the time of person you are.

I have to go to work but can’t wait to put your advise to use and clear my code 12 which is now 11 later tonight.

Subscriber for life here. Will sub under my other name too.

Thank you so much!!!! 🙏🏻👍🏻

[jacksongingrich]

Mike,
I second the comments below about the overcharges for minimal cleaning tasks, so thanks for the DIY tips from this senior citizen who can't afford to be fleeced for what seems to be a simple and straightforward task.

[toddrusso]

This guy is the real deal, i notice he takes his time and answers questions to most of your comments, keep it up buddy, im now a subsciber, and and a fellow plumber that always looks for ways to improve my skills, thanks a bunch!

[jilihbr]

I'd like to echo all of these comments because your video and no nonsense approach most certainly made it possible for me to take on cleaning the flame rods and resolve the 12 error code. Now, cleaning these flame rods will become part of my annual maintenance when I flush my tankless water heater. Thanks again, all my best regards.

[manjitnagra]

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

[Jamerrood]

You are the Man! This video saved me about $1, 600 a plumber wanted to diagnose the problem alone. Not Fix. Just diagnose!!! I did this on a newer unit and it fixed my code 12 error.

[JohnSmith-uoex]

Our local service tech retired and the nearest is many miles away, so I'm basically now left to do all my own work, Thank you so much we have hot water again!

[taterheadted]

While my R75LSi is not as easy to work on, the advice on this channel was spot on to allow me to clean the burner, ignitor, and flame rod to get mine going again after repeated Code 11 and 12. Mike -- how the heck do you get the burner out of an R75LSi for a more thorough cleaning? It appears one would have to pull the entire burner housing and copper assembly above it because there are screws on the side that are not accessible without pulling the entire copper and burner assembly!

[ntxmike]

Thanks. You helped me with my Rinnai again...Fixed my EC 11 with just a few bucks for a new gasket. Now i just need to find a replacement ignitors just in case they go out again.

[Wannabe-Pro]

This worked!!! I actually had error code 11 and just cleaned using your instructions and tore off the green part of a scotch brite sponge, and I’m enjoying hot water again! Thanks so much!

[nathanpierce]

Worked like a charm. My screws were a little (factory) tight, and I gently tapped on them to loosen the threads. After that, the screws came out easy, and I was done in 5 minutes. My igniters were definitely fouled. But the cleaned up nicely with a scotch Brite green pad. Thank you for your time and instruction.