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My rinnai ultima 2 switches off whilst heating and the error code that flashes is: 90

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  • djtaranto Aug 14, 2008

    I also have this problem! The job has been logged but it will take 8 weeks for them to come out!

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Fujistsu AWY14LSAZ error 82


look on inside of door(s) for diagnostics or manual for the flash codes.need to know what code diagnostic is or give details to what it is doing or not doing, problem with a/c or heat ?

Jan 24, 2014 | Air Conditioners

1 Answer

My Rinnai heater starts then stops after 5 -10mins flashing 14.


14 is an error code alerting you that the unit is heating up too hot. Check the air filter and make sure it is clean. You may have to take the front panel off and inspect the burner area for any signs of overheating. Remove the trim panels closest to the wall and clean out any debris from behind the heater. Let us know next time what model you have. Good luck!

Mar 30, 2011 | Rinnai 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

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

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

Heater shuts off and lights blink


go to rinnai's website and look up the manual for the diagnostic codes. rinnai.us, look under literature/manuals. type in "556". It will tell you how to retreive the error codes.

Oct 17, 2009 | Rinnai EnergySaver 556 Air Conditioner

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

Our heater 556ftr is got a code error flashing, 14


I found the manual on the net and it said error code 14 is overheating, it suggests to clean the filter, but my filter was clean, so I'm wondering if my flue has been installed incorrectly. On mine the error code is staying on after switching the power off and on, so this means my thermal fuse has blown.

Aug 08, 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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