Rinnai, Navien, Noritz, Rheem, Takagi. How to flush/descale tankless water heater. Fix/Repair Rinnai Error Code 11, 12, 14. Flushing/Descaling Ignition Rods Cleaning Burner Assembly Cleaning.
DIY fix and repair Rinnai error code 11(no ignition), Rinnai error code 12(combustion chamber abnormality), or Rinnai error code 14(heat exchanger overheating/calcium buildup)?

Here is a list of everything you need to perform the tankless water heater maintenance service on your own:
1. Tankless Water Heater Service Pump Kit w/ Stainless Steel Hoses https://amzn.to/3eYZAqM

2. Screw Driver with Magnetizer https://amzn.to/3JSdzgi

3. Sanding Open Mesh Cloth https://amzn.to/3n6DWFh

4. My favorite pliers sets:
Single Pliers Medium Size https://amzn.to/3sZfwBc

Two Pliers Set, Medium & Large https://amzn.to/3znkMQC

Three Pliers Set, Small, Medium & Large https://amzn.to/3pMuyII

5. Air Compressor with the proper blow nozzle https://amzn.to/3qU6cfA

6. Clear Vinegar(purchase 3 gallons) https://amzn.to/33bGLxz

Watch my Rinnai Tankless Water Heater Comprehensive Annual Maintenance Service Guide and take care of your tankless water heater yourself, saving lots of money. In exchange, I only ask you to SMASH THE LIKE BUTTON, SUBSCRIBE TO THE CHANNEL AND HIT THE NOTIFICATION BELL to help with popularizing it on Youtube. You can also purchase any of the tools you need for the job, from my Amazon affiliate links above, which will pay me a small commission.

This procedure applies to all noncondensing Rinnai models; RLX94iN, RL94eN, RL94iN, RL75iN, RL75eN, V94iN, V94eN, V75iN, V75eN, V65iN, V65eN, V53eN, as well as the RUCS75iN models and the RUCS variations.

The ignition rods cleaning and the heat exchanger flush/descale also applies to all condensing Rinnai models. The burner assembly cleaning is not possible on the condensing Rinnai models. If you experience error code 12 on one of those models you will have to have the whole burner assembly replaced.

Some Rinnai condensing models are: RU199iN or eN, RUR199iN or eN, RU180iN or eN, RUR160iN or eN, RU16OiN or eN, RUC98iN or eN, Rinnai RUC80iN or eN.

Here is a purchase list of my recommended tools for the tankless water heater service. Your initial investment will cost you as much as a single service from a plumber. All succeeding services will be free to you, plus you will enjoy being creative at home. My selection is a combination of the lowest price and best quality tools. I've got the best value for you:

IF YOUR WATER HEATER IS ALREADY TOO OLD AND IT NEEDS TO BE REPLACED, HERE ARE FEW DIRECT REPLACEMENT OPTIONS:

Bellow listed models are for Indoor Natural Gas. For Propane choose the model numbers that end iP or eP. For outdoor models, choose model numbers ending eN or eP.

1. Rinnai RLX94iN https://amzn.to/3pYKaJg
2. Rinnal RL75iN https://amzn.to/3zyXQOi
4. Rinnai V75iN https://amzn.to/339MN1Q
5. Rinnai V65iN https://amzn.to/32UVqh2
6. Horizontal Air Vent Kit(get it in case your old vent is gunky) https://amzn.to/3JIj9BL

Chapters:
0:00 Rinnai Maintenance Service Introduction
1:25 Ingnition Rods Cleaning, Fix Error Code 11
6:25 Heat Exchanger Flush, Fix Error Code 14
11:20 Burner Assembly Cleaning, Fix Error Code 12
28:26 Final Steps & Service Completion

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