I have a rinnai convector 406/516 unflued room heater which after awhile flashes 12 which i guess is an error of some sorts.....because its turned itself off.. does anyone know whats wrong with it??? its not on super hot or anything. thanks for any info

It is a Gas Appliance and needs repair by a qualified gas registered technician. It is a generic code for 'no flame'.

energysaver-557ftr-oim.pdf

Rinnai https://rinnai.co.nz > media > energysaver-557ftr-...
Please quote the code displayed when enquiring about service. FAULT. Ignition failure. Flame failure. Overheat. Room overheat. Room Temperature. Sensor faulty.

How to Fix Rinnai Error Code 12 - Troubleshooting Tips

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An error code 12 found on the Rinnai tankless water heater means "no flame" or a water heater didn't recognize a flame in the combustion chamber.

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Troubleshooting Rinnai gas heater with error code 12.

JustAnswer https://www.justanswer.com > home-improvement > 7...
Jul 10, 2013 - The error 12 is a flame error code. Most customers with this issue ultimately end up replacing the the flame rods to remedy it, ...

1 answer · Top answer: It is pictured for location identification on page 7 of the manual below. CLICK


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I think your assumption is correct and the temperature should automatically regulate to the chosen value and if it doesn't, clearly the thermostat is faulty or the thermostat control - electronic message not reaching the thermostat, though it is possible the temperature sensor is separate and is sending wrong information to the "brain".

According to the Rinnai manual which is here:
https://www.rinnai.us/documentation/downloads/RC-606-48x05(00)_owners_manual_RCE-606TRAII_vent_free.pdf

It looks like that is a "flame failure". They suggest ventilating the room and turning the heater off and on again, I think this might mean the heater was eating all of the oxygen in your room.

Maybe cracking a window a small bit?

Tracey, the following is a link to the Owner's Manual for your heater. You can download and print it for future reference.

http://www.rinnai.com.au/images/stories/operating_instructions/Heating/Portables/CI_Avenger_Blaze_Dynamo_Enduro.pdf

Hope this helped you ... Cheers!

According the the Owner's Manual for your Rinnai Convector Heater, there are 8 things, than can cause what you described. Two of which can be discounted, unless you just had the heater installed.

I have provided a link to the Owner's Manual, that you can download and print for future reference. Please pay close attention to Page # 6 -Pre-Service Check List and Fault Finding. Each problem listed has a troubleshooting solution.

http://www.rinnai.com.au/images/stories/operating_instructions/Heating/Portables/Granada252/portable_radiant_convectors.pdf

Hope this helps you to further troubleshoot and solve the problem. Please let me know. Cheers!

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.

Bailey,

Next time you try your stove watch the flame. If the flame goes away and then the error code comes on, you have something wrong with the over temp circuit, gas or gas valve, If the code comes on and then the flame goes away you have a flame sensor problem.

Good luck,

Tom Hawkins
[email protected]

No conversion parts available since 2005.

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/