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Our Rinnai Energysaver 1001FT Heater starts and runs for a short while then closes down (2 min or less). I have cleaned the filters and inlet ports but with no results.

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  • John Sharpe-Hall Sep 03, 2010

    Thank you,your diagnostics were correct and now its a simple question of replacing the thermocouple and overheat trip.Thank you for your advice and I will now endeavor to purchase and install the above mentioned Items.

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Heaters are a bit tricky to deal with as fixing them are better left for experts. When the heater shuts down on its own it usually is as a result of over heating in the heaters system. If the unit in the heater which is meant to regulate the unit temperature happens to be faulty the guage records a higher temperature than is in the unit and this triggers a close down of the unit. Get an expert to service it check the termostat and also check the radiator for leakages. Feel free to request further assistance.
Hope this solution has been helpful?

Posted on Sep 08, 2010

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I'm inclined to think it's the thermocouple. Read the following blog and see what you think:
http://www.fixya.com/support/t5376462-our_heater_starts_fine_after_about
Since you've cleaned your unit, it's most likely the thermocouple.
Good luck, hope this helps, and thanks for using FixYa.

Posted on Sep 02, 2010

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Posted on Jan 02, 2017

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1 Answer

My rinnai energysaver 1001ft will not turn on.It has power to it but it will not power up when switched on.no lights no go.HELP;;


Hello Mark Obrien,

I searched the internet trying to get a HIT from your
rinnai+energysaver+1001ft

and all combinations there-of...

I also went on-line to a MAJOR RETAILER site & poured over their inventory of systems and parts (see below)...
Alpine Home Air Products Contractor grade furnaces heaters air...

Nothing... so:
Assuming you are talking about a heater here


If you are seeing no "lights"...
perhaps checking the SECONDARY side of your
POWER TRANSFORMER would be the best advice...

If that has the required (typically 24 volt output)
continue on to your main control board...
(looking for the Typical FUSE (usually 5 AMP)...

If the fuse is OPERATED... replace it...
f it operates again... IT is time to consider purchasing that
SPARE MAINBOARD you always wanted...

Like a YORK furnace... (verify your OWN NUMBERS)
031 01267 001A OEM Upgraded York Furnace Control Circuit Board by BDP... (PC (Main Control Board)

ALSO CHECK HERE
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Fuse kit
Amazon com Bussmann NO 44 ATC Blade Fuse Tester Puller Kit Home Improvement

Hope this helps...

Carnac the Magnificent

Jun 25, 2017 | Rinnai Heating & Cooling

1 Answer

Rinnai energysaver 551 ft starts but won't stay running


Those water heaters are very sensitive to flow rates. The service manual appears to be here: http://rdjxmmyvbu.blogcu.com/rinnai-551f-service-manual/13623970

But there is no guarantees

Jul 24, 2016 | Rinnai Heating & Cooling

1 Answer

Rinnai energysaver 556 blinking


Hi jmsocr2315,

If my description of what your heater is doing please read through to the end.

The heater is turned on and a room temperature is selected.
You can hear the noise of a small fan start, which shortly after the heater starts.
After a short period of time the heater stops and the red led begins to flash and shuts itself down.

This type of heater has a balanced flue, which means it draws air in one pipe and exhausts it out another.
Have the balanced flue checked for blockages, the problem will most likely be in the flue pipe which draws the outside cool air into the heater and not the flue pipe which blows out the hot air.
it may be full of cob webs or something else which restricts the air flow to the heater.
A service person can perform a quick test to prove the above theory. At the rear of the heater there are two pipes, one is an insulated metal pipe and the other is plastic pipe.
Disconnect the plastic pipe from the flue box and restart the heater.
If the heater runs normally this will confirm that there is a blockage.

Feb 05, 2014 | Rinnai EnergySaver 556 Air Conditioner

1 Answer

I have a rinnai 1001ft heater but i need the flue is there enyone that has one please


You should be able to get the flue kit from any Rinnai resellers.


There are many different flueing options existing for Rinnai Energysaver depending on where you wish to install it (by a licensed gas fitter only of course).

Depending on what flue kit you need for your own situation you could be looking anywhere between $150 to $800 (AUD).

Go on their website for a list of resellers.

Mar 19, 2013 | Rinnai RHFE-1004FA 38,400 BTU Energy Saver...

1 Answer

We have a RINNAI ENERGYSAVER 1001FT, if power or gas has been turned off, it takes several attempts to restart it.


If the gas was tunred OFF, yes it would take several attempts for the pilot to light. Because, there is air in the line from the gas line shutoff valve to the heater. Once that's purged, the heater should light. The electrical power shouldn't affect it. Unless, the heater hasn't been serviced in the last year. Unfortunately, they are not maintenance free.

Jul 06, 2011 | Heating & Cooling

1 Answer

I need to find an exhaust manifold for my Rinnai energysaver 1001FT


I'm sure you have looked but the best bet is to go through Rinnai and find local parts dealers or installers who can get you the parts.

Always willing to help, let me know the area you are in country etc.and I will see if i can recommend anyone.

I have contacts in Oz and NZ.

I can also send a link for the parts if that helps or just look up the model you should find a pdf..
Exhaust fluing for these units is tricky to specify as there are lots of different parts available depending on how you want to run the pipe. Recommend getting someone in who has good experience installing these as this will save alot of time (and money). We used to get so many installers trying to return parts that were incorrectly ordered.

Aug 01, 2010 | Rinnai RHFE-1004FA 38,400 BTU Energy Saver...

1 Answer

Rinnai energysaver 1001ft won't turn on. Was okay when last switched off. Cleaned filters and green light comes on for a short time but no red light to ignite starter for gas. After less than 1minute...


Wet your finger first- then plug the item in, the filters should run in reverse. Make sure that the filter is in right. This was made in China and it is read left to right not right to left. The translation got it backwards. Fix this and the flow will make all well.

Sep 27, 2009 | Heating & Cooling

2 Answers

Rinnai Energysaver 1001FT, ignites, blows 5mins then shuts down.


Sounds like it is reaching high limit...either the filters on the back are plugged, or the manifold pressure isn't adjusted properly. IF the exhaust were plugged on the unit, it wouldn't fire at all, since it has a pressure switch to verify vent flow. The slightest blockage, the unit will lock out to prevent damage to the unit.

Jul 07, 2009 | Rinnai RHFE-1004FA 38,400 BTU Energy Saver...

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