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Hi i have a rinni convector 516tr heater i put it on it switches off a few seconds later i think it has to do with the timers i have lost the book/

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I am assuming this is a tankless heater. Are you turning the water on full throttle and is there full flow. First thing to check is the small filter screen on the inlet of the water heater. If the flow is reduced the water heat will not fire.

Posted on Sep 05, 2010


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Posted on Jan 02, 2017


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OUr Rinnai gas heater convector 516tr keeps on turning itself off and flashes 12 on the light panel. What does that mean and how to fix it? tks


12 flashes means "Incomplete combustion". The code is prompted when the flame turns off because of a problem.

Check filter, check gas pressure and thermocoupling. Those are the problem that commonly trigger the code 12 error.

Here a manual.

Here Fixya thread on the problem.

Sep 06, 2010 | Heating & Cooling

1 Answer

We have used the Rinnai convector 516TR without it giving off any smell - lately it is giving off a very strong smell - a bit sickening to be honest - as if the gas is not burnt fully. Anyone with similar...

Firstly I'm hoping you have cleaned the filters on the back. This should be done every few days of operation.

I have posted many solutions on these heaters that are basically no more than advice to get heaters like these serviced by a reputable gas fitter. Smells can be either a build up of dust or debris on fan motors or heat exchangers down to more serious faults such as incomplete combustion of the gas. The latter can be serious with major health risks. I really encourage you to find a good tradesmen, experienced in working on these heaters and get him to give it a good clean out. The safest way is to get this done once a year.

If you really are watching the pennies (aren't we all) and this is not an option here is a link to a service manual. The front panel comes off fairly easily and you might be OK just brushing off any dust you can see but please please be careful, turn of gas/power and don't attempt it if you are unsure. Heres the link

Aug 18, 2010 | Rinnai RHFE-1004FA 38,400 BTU Energy Saver...

1 Answer

Hi We have a second hand Rinnai Convector 404 with no instruction manual. We cant get it to stay on we have had it looked at but it came back to same so we dont know if it's us or the heater. We can push...

This sounds like a faulty flame failure device. Fairly old heater this one. I have a manual on PDF but I don't think it will help you fix it.
Just found a link to users manual

Have a look but best advice is get someone to have alook at it who knows the unit and can get spares as I'm pretty certain your going to have to fork out a few dollars on this one.

Jul 28, 2010 | Heating & Cooling

2 Answers

Dimplex Convector Heater EPX1000 turns off by itself

I have the same problem with 3 of the 5 EPX1000s I have fitted in my flat, although mine don't even warm up. They just immediately turn themselves off. My only conclusion is that they are rubbish. Specifically, the so-called overheat protection doesn't work. Avoid.

Jan 16, 2010 | Dimplex Heating & Cooling

2 Answers

Mt Rinnai convector 516tr will not start, have stored it away for summer got it out for this winter plugged all in after pressing start after about 20 seconds No 11 starts flashing

I have had this problem due to the heater 's combustion sensor concluding that all was not well. In my case, the heater had burned up too much of the available oxygen. I didn't notice the lack myself, so it must be very sensitive. I had shut the place up to keep the heat in and eventually it dawned on me to open a door for a minute or so every half hour or so to replenish the oxygen supply.

The situation is worst when the place is very cold as the heater will roar away trying to heat it up as quickly as possible. After I came back for a holiday in winter, I had to set the temperature down to "L" and "Economy" on plus run an electric fan heater for a day to warm the structure to the point where the gas heater could relax and not burn oxygen faster than it could heat the space.

Apr 30, 2009 | Heating & Cooling

1 Answer

Rinnai convector 516TR

Hi This is happening to us and I called Rinnai... they suggested that if anyone either in our apartment or an ajoining one has painted walls or varnished a floor that the convection heater picks up the smell and the only way to get rid of it is to burn it off by running the heater for several hours in a well ventalated room...

I am going to try it tomorrow.

will let you know

Jul 13, 2008 | Rinnai RHFE-1004FA 38,400 BTU Energy Saver...

5 Answers

Rinnai Convector 516TR Heater

Hi, Here is the link to the manual. I think something like 'thermo coupling' probably means you need a technician!

Jun 24, 2008 | Heating & Cooling

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