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RINNAI WATER HEATER GIVING A DEFAULT CODE OF 11, WILL NOT ACTIVATE......

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Fault Code 11 is "no ignition". Could be cause by 1 of many problems such as defective ignitor, no gas pressure, etc. A full list of possible causes can be found here:

http://www.rinnai.us/documentation/downloads/Error_Codes-Tankless_Water_Heaters.pdf

Posted on Sep 12, 2009

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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

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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.

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Getting an error code of 11


Error Code 11 indicates an ignition failure. Check that the gas supply is turned ON. Switch the heater to STANDBY and the ON again. If the burner doesn't light or you continue to have a problem contact your Rinnai dealer.

Hope this helps you and thanks for choosing FixYa. Cheers ...

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


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I have a trouble code 11 on my Rinnai model 2532 water heater which indicates no ignition. I checked for gas supply by turning the furnace on which is approx. 1 ft. away, it works. The water heater is...


11 is a ignition failure code. Could be alot of things, I suggest calling a tech who has repaired these before. Pull the front cover off and have a helper turn on a hot water faucet. Look thru the viewing window to see if the unit is firing then going out. If not, clean out the water filter on the inlet side of the plumbing. You will need to turn off the water supply prior to cleaning it. If the unit fires but shuts off seconds after ignition, you may have a dirty or bad sensor. Call a proffessional at this point. Sorry

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11 means no gas / failed to ignite - check the bayonet is fully plugged in properly, they can be hard to plug/unlpug - otherwise you wilol have to take it in for service.

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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"

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No hot water


An error code of 11 equals no ignition. Check gas supply, sparker, flame rod, burner and ground.

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Error code 11 on my rinnai


A code 11 also means that it might not be getting any gas. On thr right side of the unit you will find a small door. open it up and make sure the valve is in the open position. If it is, you should contact your gas company to come and diagnose what is going on. The Rinnai is not a do it yourself fix it type of heater.

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