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I have Rinnai hot water system V1500, the temperature is to low, how to set up temperature higher ?

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Posted on Jan 02, 2017

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SOURCE: We have Rinnai 18 instant hot water service. We

We have the same problem! It's happened twice this week after heavy rain. There is no error code "19"listed in the manual. Ours is a Rinnai Infinity 24 hot water service. I called Rinnai and they had no idea and were going to send a serviceman when it suddenly righted itself. Now it's recurred. Wife and daughters furious. Please help!

Posted on Jun 11, 2010

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SOURCE: Dip switch settings for Rinnai V1200 & V1500

curios to find out if you had any help on this subjuct at all?

Posted on Aug 01, 2010

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SOURCE: I had a MC-91 US

I would suggest that you turn temperature setting up to 140 degrees and see if this won't help you. Obviously with water temperature that high make sure no little ones are left unattendded. Thank you

Posted on Nov 23, 2010

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Posted on Aug 10, 2011

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In temperature screen at 49 degrees to back to front t's appear and boiler stops


PDF]Operation and Installation Manual Outdoor Tankless Water ...

https://www.rinnai.us/.../U287-1932(00)_Outdoor_...

Rinnai America Corp.Temperature controlled continuous flow gas hot water system. .... This water heaterwill attempt to provide hot water at the temperature setting even when the ...

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plumbingengineer.com/content/hot-water-system-temperatures-and-code
Feb 1, 2015 - There have also been incidents where the circulating pump stopped ...before it connects back to the cold water inlet to the water heater. .... Is there a maximum temperature limit for domestic water heaters? ... a means to limit the maximum setting at the valve to 120°F (49°C) or ... Some do and some don't.

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Dec 25, 2015 | Water Heaters

1 Answer

There is a very slim chance that anyone will know the answer but it is worth a try. We have bottled gas, 45kg bottles. We have done the hot water test and are positive there is gas in the bottle but our...


OK just using logic, no specialist knowledge but...
If temperature fluctuates, then it sounds more like a thermostat/heat control problem. If it CAN get hot then doubtless there is gas available... It's probably something to do with the heat controller unit - can you get it checked? have you looked inside the unit to see if there is any obvious issues?

May 02, 2017 | Gas Gas Motorcycles

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.

Dec 18, 2010 | Rinnai Digital Remote Water Heater Control...

1 Answer

I had a MC-91 US Rinnai tankless water heater installed in my home last Monday a week ago today. The temperature is set at 120 degreres. The problem is when we take a bath. The hot water only lasts till...


I would suggest that you turn temperature setting up to 140 degrees and see if this won't help you. Obviously with water temperature that high make sure no little ones are left unattendded. Thank you

Nov 23, 2010 | Rinnai Heating & Cooling

2 Answers

How to operate Rinnai V1500 water heater?


The V1500 is in essence the same as Infinity 26. Rinnai have manuals on their website.

Here's a link

http://www.rinnai.com.au/images/stories/operating_instructions/Hot_Water/All_Continuous_Flow.pdf

If you have any specific problems or queries just post them on this site. I check it every few days.

Cheers

Aug 15, 2010 | Water Heaters

1 Answer

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

Dip switch settings for Rinnai V1200 & V1500


curios to find out if you had any help on this subjuct at all?

Aug 24, 2009 | Rinnai Water Heaters

2 Answers

Runs out of hot water


I wonder if you have this problem below caused by a drop in water pressure from someone flushing a toilet or a washing machine. I would call the company to remedy this issue.

17. What is a cold water sandwich effect? The term “cold water sandwich effect” is a term that is used to describe the introduction of cold water into the hot water supply line during frequent on/off operation of an instantaneous water heater. The cold water sandwich effect, when present, appears as a momentary drop in hot water temperature as it is discharged from a hot water supply outlet (i.e. shower, tub, or faucet). This phenomenon is present in the operation of all instantaneous, tankless style, water heaters, but is minimized with the high tech design of Rinnai water heaters.
The technology built into the Rinnai water heaters is designed to minimize the cold water sandwich effect. Rinnai water heaters are microprocessor controlled and when water flow through them ceases, they remain in a “ready to fire state” for approximately 1 minute. If water flow through a Rinnai water heater begins within the first minute following water flow stoppage, the water heater will fire back up within 1 to 2 seconds. This minimizes the cold water sandwich effect that would otherwise be experienced with a low tech tankless water heater. It should be noted that the cold water sandwich effect cannot be removed completely from tankless style water heaters. The safety standards developed to insure the safe operation of water heaters require a delay in the ignition sequence of all gas water heaters.
While the cold water sandwich effect cannot be completely eliminated from standard plumbing systems, it can be eliminated from plumbing systems that have a supply and return hot water circulating system. Rinnai has developed 2 methods to eliminate the cold water sandwich effect in residential hot water circulating systems.
The first (and preferred) method to remove the cold water sandwich from circulating systems utilizes a small electric tank water heater (powered up) that is used with a dual purpose. The small water heater acts as a mixing tank to eliminate the cold water sandwich effect from the Rinnai water heater and it uses its electric heating element to offset the heat losses from the hot water circulating system.
The second method to remove the cold water sandwich from circulating systems utilizes a small 2 to 6 gallon storage tank installed on the hot water outlet of the Rinnai water heater. This tank acts as a mixing tank to blend the cold water sandwich with hot water and eliminating its effect at fixtures.

Mar 11, 2009 | Rinnai Water Heaters

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