Question about Rinnai Heating & Cooling
Heater turns off after 5 minutes. Get code 12 in temp box.
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Posted on Jan 02, 2017
SOURCE: 606tr rinnai silent server
You are not getting gas for some reason. Check the valve to make sure it is getting power to open the solenoid. It may need to be set to on. If you are getting power to the valve and its not getting gas, check the orifice. Sometimes a spider or other bug will get in there and plug it up. Its a very small hole, so it wont take much to block it.
Posted on Mar 02, 2008
yes you can, but is complicated, involves changing injector, burner, and reprogramming the PCB for the new gas type. Get a pro to do it for you
Posted on Dec 05, 2009
Hold the lock button down for approximately one second to switch between locked and unlock. If it is locked when you turn it on you will need to do this first
Posted on Jul 30, 2010
I know that this is an old post but i had this same problem and i cant find a single answer to this problem anywhere on the net. Rinnai couldnt even give me an answer (let alone even call me back)
Well I figured it out. If you go onto Rinnai's website, you can download the manual, which has the codes and what they mean. Code 12 means Flame Failure. Still this didnt tell me enough. After taking the thing completely apart twice i finally figured out that the heater itself was perfectly fine.
The gas line was the problem. My gas line has a check valve on it right next to the heater. The check valve was not letting a consistent flow of gas to the heater because the heater was drawing too much gas at times, causing the check valve to start to close because it thought there was a leak (so to speak).
All i did was turn the gas valve behind the heater so that it was closed more (not letting as much gas flow through) so that it wouldnt trip the check valve. the heater now works fine and keeps a consistent temperature with no problems.
Posted on Dec 07, 2010
There should be a condensation line connected to the flue running into a pump or floor drain.or possibly a internal heater to disapate it.
Beacause the heater reuses the gas there is alot of moisture in natural gas,thay needs to be drained from the flue.
Sounds like this condensate line is either clogged or frozen or both.Yes your going to need to thaw the flue out.Before you do this turn off all gas and electric to the heater,we do not want it to start.
A hair dryer may do the trick,to help thaw the ice off.If you can locate the drain line for the flue and thaw it out and clean it out.Check that all filters are clean and in place before starting up.
Also check outside that nothing is driping onto the flue from the roof or a tree.
I found a link with your owners manual.
Hope ive helped.
Posted on Dec 14, 2010
Testimonial: "GREAT ANSWER --- used a hair dryer on the outside flue (after it had been in sun a few hours (luckily flue is on south side of house) Started by turned gas/elec off, then chip'd most of ice off, then gave it high heat till water started drip'g out of flue (~2-3 mins), then went back inside and turned gas/elec back on and started heater --after repeating this process a few times (3?) heater stayed on and we had heat !!!! Sorry for not writing sooner.... but want to let you know that we had the 'opportunity' to reapply your solution twice more during last winter - worked great both times !! "
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