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How to fix Rinnai code 11

How to fix code 11 No ignition

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2 Answers

My Rinnai tankless water heater flashes 11 when calling for hot water.


Your Owner's manual should help. No manual, try MFG website, or email their customer service. Or try manualslib.com

Apr 27, 2015 | Rinnai Water Heaters

1 Answer

Code 11. had hot water last night


Code 11 is for no ignition.
Here is what I find:

Check that the gas is turned on at the water heater, gas meter, or cylinder.
Ensure gas type and pressure is correct.
Ensure gas line, meter, and/or regulator is sized properly.
Bleed all air from gas lines.
Verify dip switches are set properly.
Ensure appliance is properly grounded.
Disconnect EZConnect™ or MSA controls to isolate the problem.
Ensure igniter is operational.
Check igniter wiring harness for damage.
Check gas solenoid valves for open or short circuits.
Remove burner cover and ensure all burners are properly seated.
Remove burner plate and inspect burner surface for condensation or debris.

IF it has been working fine and now it isn't, I would suspect an ignitor problem.

Nov 29, 2014 | Rinnai RL94iN Natural Gas Tankless Water...

1 Answer

Rinnai RC98i Error 12 - Flame Failure


IF THIS UNIT HAS SPARK IGNITION THE IGNITORS ARE PROBABLY OUT OF ADJUSTMENT WHICH IS LIKE HAVING TO WIDE OF A GAP ON A SPARK PLUG . IF YOU MAKE GAP OF IGNITOR ELECTRODES APPROXIMATELY 1/8TH OF AN INCH APART IT SHOULD LIGHT AS LONG AS YOU ARE GETTING VOLTAGE FROM IGNITION COIL. CALL A SERVICE TECH

Dec 22, 2013 | Rinnai RC98i Tankless Water Heater 9.8 GPM...

1 Answer

I have a Rinnai Tankless Water Heater with a recurring failure to start problem (Code 11)


The first thing that you should do is get a water sample and have it tested for TUBIDITY. Then see what the contaminates are. This will tell you what the problem is. I seriously doubt what Rinnai is telling you is the truth. Then you need to look into a whole house water filter that has an NSF recommendation. That will stop all the issues that you are having.

Dec 02, 2013 | Rinnai Water Heaters

1 Answer

Keep getting error code 10 for our rinnai rl75 tankless water heater how can we fix this?>


Go to the manual or go on line for the manual and look up the code and its meaning.

Aug 14, 2013 | Rinnai Tankless Water Heater Internal...

1 Answer

Rinnai 2532 error code 10


Error Code 10 Problem: Reduced or no air supply to the water heater or there is an obstruction in extracting the flue gases out.

Solution: Make sure that the recommended Rinnai venting is used, there is no obstruction in the venting system, no reduction in diameter and lengths are per instructions. Also make sure that nothing blocks the venting system or fan, and that dip switch and condensation collar are set properly.

Good luck,

Marty

Jan 20, 2013 | Rinnai Water Heaters

1 Answer

Ignition problem: I have a gas hot water system: RINNAI CORPORATION; MODEL:REU-2008W-A the panel display temperature as 40C, when open the tap, the temperature display dropped to 12C, and no...


This is an error code 12, not 12 degrees. You have a short on your low voltage side by the sounds of it.. First disconnect the controllers inside the heater. Turn of the power first, 2 screws top and bottom to take the frnot panel off. Follow the low voltage wires (not the power point ones) to the PCB on the ride side and disconnect them both. Panel back on, power on and try the heater again. If this fixes it you have a short circuit in the controller or the wires leading to it. If not the most likely short circuit is on the thermal fuse which loops around the heat exchanger. This will need an expert, Perth has plenty north and south of the river. Give Rinnai a ring first, they have some good staff in Perth who might help.

Dec 02, 2010 | Rinnai Water Heaters

1 Answer

Code 11 water heater comes on for short period and shuts off


this is a tricky one, it means no ignition,which could just be a dirty flame sensor, low gas pressure, or no spark to ignite the burner. sorry but this one requires a rinnai trained service man

Nov 17, 2009 | Rinnai Webstone The isolator EXP tankless...

2 Answers

I have a Rinnai tankless gas water heater and this things beeping and flashing 12 everytime we turn on the hot water the water will get hot but you have to wait for it to stop beeping


Error 12 is failed ignition - this can be caused by many things, but normally a low gas pressure, or no gas pressure upon ignition.
Try turning the hot tap on very slowly till till the control shows burner is lit. Then turn it on faster. If it stays going with no error, you might have a faulty regulator, not opening fast enough to meet demand. Especially common with lpg models,a lot rarer on natural gas.

Oct 27, 2009 | Rinnai Water Heaters

1 Answer

No hot water


The code # 11 is a code that warns of "no ignition" and the causes of this error code are too many to list. I would suggest that a qualified tech. perform a diagnostic test and repair.

This is not a task for the "do it yourselfer"

Mar 22, 2009 | Rinnai Digital Remote Water Heater Control...

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