Question about Water Water Heaters
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Posted on Jan 02, 2017
Here are two links to get the manual for your unit. Since I don't have the model number for your unit, you can find this in one of the two links. If you have the manual, you will know if you are skipping a step or not. If you have done everything, then I would call Rinnai to find an authorized tech for your appliance. Hope this helps.
Posted on Mar 21, 2009
SOURCE: 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"
Posted on Mar 25, 2009
which ever one has the temp on it would be the one,, is it gas? or electric? if gas it would be on the gas valve ,, if electric it will be under the cover where the elements are
Posted on Jun 08, 2009
yes, sounds like the temp control is bad, you should be able to google model# and thermostat to find replacement. should be fairly easy to swap out
Posted on Aug 19, 2009
We had the same problem - the hot water would only be hot for 3 -5 minutes and shut off, then we had to turn the water off, wait a few minutes, and do it again. VERY FRUSTRATING.
Solution: The Rinnai serviceman showed me the heat-exchanger blower/fan: It was clogged with dust and moths.
Another clue: Our Rinnai was extremely noisy when the heat came on. After the fan was cleaned and replaced, it is nearly silent.
If you are reasonably mechanically inclined:
TURN THE BREAKER / POWER OFF to the unit.
The blower-fan is located in the lower central area of the unit (at least on our unit). If you draw imaginary north-south, east-west lines through the center of the unit, the fan is in the lower-left quadrant. There is a spring clamp securing the black rubber accordian-like tube to the fan. There are two screws that secure the fan to the unit. there are two plugs that connect to the fan, as well as a third air-flow sensor that should be removed. then you can look at the fan unit, as well as the grill on the underside of the heat-exchanger that should be cleaned.
My thought was to go out and get a simple bug-screen, and place it over the air-input outlet vent going outside, but the repair guy said that although it may sound good, if that screen ever gets clogged, or reduces airflow to the Rinnai, then the unit will work harder, or even shut off, giving the same problem.
Posted on May 24, 2010
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