Question about Rinnai Desa Vent-Free Infrared Gas Heater: Vent-Free Infrared Gas Heater(18,000 BTU)

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No hot water

My rinnai tankless hot water heater is to producing hot water, the temperature gauge blinks #11 and beeps. Can you please help quickly as this is Thanksgiving.

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

Posted on Nov 28, 2008

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Posted on Jan 02, 2017

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Rheem rte13 standby (green) light not on


You might have crossover problem caused by bad faucet cartridge.
http://waterheatertimer.org/Crossover.html

The green standby light should come on when 240Volt power is applied. Page 6 manual.
Both red lights should come on when tankless is activated. Page 6 manual

RTE 13 requires 60 amp breaker and 6 gauge wire
http://waterheatertimer.org/How-to-wire-Tankless-electric-water-heater.html
http://waterheatertimer.org/pdf/Rheem-TanklessElectricUC_AP15447.pdf

Factory temperature setting is usually default 120 degrees.
Adjust temps page 11 manual
Thermostat calibration is always approximate.
120 degrees is not hot enough to burn the skin.
Exceptionally cold incoming water temperature can cause tankless not to heat enough hot water: install tempering tank to preheat water to room temperature.
Tankless cannot be exposed to more than 11 grains hardness in water. Delime tankless yearly, clean water filter monthly, do not install low-flow restrictions or conserve water since the flow rate must remain high for tankless to activate.
Rheem does not post service manuals for their tankless water heaters.
Call Rheem 800 432-8373

Aug 05, 2012 | Rheem Tankless Hot Water Heater...

1 Answer

How do I turn it on? I press the "on" button and


The manual says:
http://www.coinwash.com/temp/rinnai.pdf

"For the name of the Authorized Distributor or Installer nearest you, please contact your local HVAC dealer or gas service technician, visit the Rinnai website (www.rinnai.us), call Rinnai at1-800-621-9419 or write to Rinnai, 103 International Drive, Peachtree City, Georgia 30269"

Manual says that the remote is for setting temperature.
When you turn on hot water spigot, tankless water heater will heat the water to the set point temperature.
If water heater is not set up to use remote, then tankless unit will heat to 140 degrees F.
"With the MCC-45-4US remote control installed the water temperature is adjustable from 96
to 180°F. The water temperature cannot be set to a temperature other than 140°F
without the use of the MCC-45-4US remote control unit. If you require a temperature
other than 140°F you must install the MCC-45-4US remote control unit."

"Error messages are displayed on the remote control units, simplifying service calls."

Page 9 of manual shows hot to set temperature using remote.
Water taps must be shut off to set temperature.
Circulating pump must be turned off.
"Simply press the H or C button until desired temperature is displayed"
"green in-use indicator will display"

If your unit is not working, the manual says to contact local plumber.
Fixya has specialists who will talk to you by phone about your problem for a fee.

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Exterior mounted Rinnai tankless water heater not


check to see if you have a blocked line on the hot water side

Jan 08, 2010 | Rinnai Webstone The isolator EXP tankless...

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Our Rinnai tankless water heater is producing water as hot as pre


Power outage will reset Rinnai unit to that temperature. Read manual for more info.

Nov 28, 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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No water flow from hot water tap with a rinnai tankless water hea


Its A Possibility The Left Over Water In The Hot Is Frozen. If Your Line Is Exposed Outside Somewhere It Can Easily Freeze Up. Turn On The Hot Water Everywhere In The House And If Accessible Check The Lines To See Where The Warmth Ends. You Can Leave One Off Over Night In Hopes That It Will Eventually Defrost.

Jan 16, 2009 | Rinnai Webstone The isolator EXP tankless...

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Rinnai Tankless Water Heater


Question, is there any other equipment that uses propane? You indicate that the problem started after a delivery of propane after running out. If so, I suspect a blockage in either the gas train or the rinnai itself. If tou have the temperature control that regulates the water temperature, you can recall error codes to pinpoint the issue. They are optional equipment so if you can wire one in or ask your propane gas supplier if their service department has one, it will aide in the diagnosis.

Nov 22, 2007 | Heating & Cooling

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