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Rinnai Infinity instant hot water system. Worked foe 24 hrs then error code 12. (nil gas ??) how do I fix this or is it improper installation and should I get installer back

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  • Anonymous Mar 13, 2014

    no hot water no switch

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Call the installer back

Posted on Jul 03, 2008

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Our Rinnai Infinity HWS is displaying error message 12 and no hot water is available


Hi,

The following could cause this. I would call a licensed plumber to fix this issue.

Check that the gas is turned on at the water heater and gas meter. Check for obstructions in

the flue outlet.

Ensure gas line, meter, and/or regulator is sized properly.

Ensure gas type and pressure is correct.

Bleed all air from gas lines.

Ensure proper Rinnai venting material was installed.

Ensure condensation collar was installed properly.

Ensure vent length is within limits.

Verify dip switches are set properly.

Ensure appliance is properly grounded.

Disconnect keypad.

Disconnect EZConnect™ or MSA controls to isolate the problem.

Check power supply for loose connections.

Check power supply for proper voltage and voltage drops.

Ensure flame rod wire is connected.

Check flame rod for carbon build-up.

Disconnect and reconnect all wiring harnesses on unit and PC board.

Check for DC shorts at components.

Check gas solenoid valves for open or short circuits.

Remove burner plate and inspect burner surface for condensation or debris.


The above is what #12 indicates.


No way to fix it without further hands on investigation. I seriously recommend you call a licensed plumber.


Let me know,if needed further assistance.


Hope i helped you.


Thanks for using ' Fixya ' and have a nice day!!

Jul 13, 2011 | Air Conditioners

1 Answer

I have a rinnai infinity series 24 litre hot water system and the problem is that the water sometimes goes cold for 1 or 2 minutes whilst showering ! Why is this happening ?


flow metering device is causing the heater to shut down until the temp changes enough u must adjust it on the heater refer to instillation manual or call rinnai

Mar 15, 2011 | Rinnai Air Conditioners

2 Answers

We have an rinnia infinity 26 instant gas hot water system which has just recently installed (2months ago). It started working fine but started to produce hot water for five minutes until today it has...


This is operated by a flow switch, when you open a hot water faucet it turns on. There is a small filter in the cold water inlet on the Rinnai located just below the cabinet on the cold water line. It will unscrew and you can clean it out after you shut off the water to the unit. Make sure there is flow through the cold water line and out the hot water line. If that gets you nowhere, you will need to connect an MC control to the unit to get the error codes. Make sure you have flow through the unit and the gas is turned on to it. You will be able to hear it trying to start as an assistant turns on the hot water while you are in front of the unit and cover off. Look through the small viewing port for any spark or flame and see if it stays on or quickly goes out. You can remove the ingiter flame rod assembly and clean off any debris stuck to it with a soft brush. Not much you can do to it. It's like a newer car, you will need a technician with proper tools and experience with these units to be able to repair it. Your installer should cover this under their warranty and any parts needed will be under Rinnai warranty.

Feb 18, 2011 | Air Conditioners

1 Answer

I have a rennai infinity that flashes error code 12. What would be the cause of this.


Error code 12 on a Rinnai means the unit lit, sensed a flame but then failed to sense it some time later whilst in operation.
Secondly,when you get a 12 immeadiatly you turn the tap on. This is caused by a short circuit on the low voltage side of the heater.

Dec 06, 2010 | Air Conditioners

1 Answer

OUr Rinnai gas heater convector 516tr keeps on turning itself off and flashes 12 on the light panel. What does that mean and how to fix it? tks


Hi.

12 flashes means "Incomplete combustion". The code is prompted when the flame turns off because of a problem.

Check filter, check gas pressure and thermocoupling. Those are the problem that commonly trigger the code 12 error.

Here a manual.

Here Fixya thread on the problem.

Sep 06, 2010 | Air Conditioners

1 Answer

We have Rinnai 18 instant hot water service. We have no hot water. Pilot light appears to have gone out. When I turn on hot water tap the temperature on key pad flashes at 19 degrees instead of 55


We have the same problem! It's happened twice this week after heavy rain. There is no error code "19"listed in the manual. Ours is a Rinnai Infinity 24 hot water service. I called Rinnai and they had no idea and were going to send a serviceman when it suddenly righted itself. Now it's recurred. Wife and daughters furious. Please help!

Jun 11, 2010 | Air Conditioners

1 Answer

Rinnai 556 ftr keeps flashing code 12


Hi

Thanks for using FixYa. Error code 12 on a rinnai 556ftr means Flame failure. Check gas is turned ON.
Also see this error manual.

Please refer to this user manual for more details --

Rinnai 556ftr User manual

Please do rate the solution & revert for further assistance.

Thanks
Rylee

Jul 29, 2009 | Rinnai EnergySaver 556 Air Conditioner

1 Answer

We have installed a rinnai water heater in the basement. Since it takes a little time before the hot water arrives in the kitchen or upstairs in the shower, we are wasting qite a bit of potable water every...


The only way to reduce water waste would be to have a plumber install smaller pipes coming from the water heater to each individual point of use. The normal way of plumbing a house uses a large pipe that has smaller pipes that go to each sink, tub, shower, etc. The larger the pipe, the more water is in it and the longer it will take to get hot water to where it is going. An electric tank won't save you from wasting any water unless you have a separate hot water circulation system installed. This would keep the hot water drawn out to the far ends of the plumbing system and allow the hot water to reach it's destination alot sooner. However, keeping a tank full of water hot is not economical and a circulation system basically turns your pipes into a radiator causing you to waste electricity. I know it may seem that you are wasting alot of water waiting for the hot water to get there, but in the long run you and the environment are coming out ahead due to the saved energy and efficiency of the Rinnai unit. Also just in case you were thinking of it, a circulating system is not compatible with a Rinnai water heater.

Jun 19, 2008 | Rinnai Air Conditioners

1 Answer

Hi - I have a Rinnai Convector 406 gas heater which is 2 years old. Yesterday, it started cutting out with an error code of "12" showing in the display. It can be re-started but only stays on for a few...


I believe the 12 is the error code for "incomplete combustion". In this case you will want to start with the thermocouple. If you are not handy at these things I would call a service tech. You can find a service person on their website.

http://www.rinnai.us/

Jun 15, 2008 | Rinnai Air Conditioners

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