Rinnai Toyostove Direct Vent Heater: Toyostove Laser 73 Shipping Logo
Anonymous Posted on Sep 19, 2012

I have a toyostove Laser 73. i have fuel leaking from the reset knob and rubber grommet on the fuel sump. is there a rebuild kit for the fuel sump available?

I could not find any part number for the rubber grommet on the copper pick up tube located behind the reset knob on top of the fuel sump. Also needed to know if the fuel nozzle gasket has to slide over the fuel nozzle guide tube or if it just presses up against it?

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Anonymous

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  • Posted on Oct 27, 2012
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It looks like the posted answers do not address your issue. If fuel is leaking at your sump and vent, shut the small fuel valve inside the stove off (reverse threads )and and drain your fuel sump. Once drained, open the fuel valve and if it floods again, you have a bad float. If not, the red "reset" button was either pushed down multiple times or held down. This causes a flooding problem. That should cure your problems.

5 Related Answers

Anonymous

  • 625 Answers
  • Posted on Dec 02, 2007

SOURCE: Toyostove laser 73 heater with a EE 2 error

replace the flame rod. or it could be the computer board for the flame rod. flame rod detects the presence of a flame.

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Anonymous

  • 2 Answers
  • Posted on Jan 25, 2008

SOURCE: laser 73

My Laser 73 does the same thing at least once, and sometimes twice, a year. The EE6 code is what the onboard computer gives when it THINKS the flame has gone out. Now, it COULD be that all that is wrong is you are out of fuel, OR you have water in the fuel. But....the more likely scenerio, (and what has always gone wrong with mine) is a common problem in the flame pot:
There is a stainless steel baffle near the bottom of the flame pot. (about 2 inches off the bottem). This baffle is used to "form the flame", cause it to curl up around the inside edges of the pot, where the air intake holes are, to create a clean-burning, high-efficiency blue flame. Over time, this baffle becomes horribly warped and distorted from the intense heat. (an engineering design screwup, IMO) (but you'll never get them to admit it) This warping of the baffle, in turn, causes the flame itself to become uneven, and to also begin burning poorly, with soot deposits. One of the first hints this is happening is lots of YELLOW flame, instead of the usual blue. When this happens, the flame SENSOR becomes sooted and dirty, and no longer is able to sense the flame. It tells the computer to shut down, because it thinks there is no flame, hence the "EE6" code. This sensor is simply a stainless steel rod poking into the flame pot. It's on the front of the pot, two screw fastening, and has a single wire attached to it, which runs to the computer. It is used to detect IONS (minute current) running from the flame front to the pot itself. (ground) And....(as if all this is not enough), the gaskets around the middle section of the flame pot, and at the top, usually develop cracks and leaks.
Cleaning the sensor (with steel wool) usually isn't enough to fix this problem. You will likely have to replace both of the fire-pot gaskets, the flame pot baffle, and also the burner "mat". (a round, flat, fiberglass mat glued to the bottem of the flame pot. Vacuum out all the dirt and soot. The baffle "unscrews" with about a quarter-twist CCW. (lift upwards on it, while turning CCW) Use fire-proof sealer on the new gaskets. Plan on all day taking it apart, and back together again. (a time consuming job...no fun) Good luck!

Anonymous

  • 1 Answer
  • Posted on Mar 30, 2008

SOURCE: Toyostove Laser 73

corosion build-up on blower motor fan

Anonymous

  • 57 Answers
  • Posted on Nov 03, 2008

SOURCE: Toyostove Laser 73 EE2

Not having a cleaning in the last couple years may be the problem. Carbon build up in the burner pot and on the flame rod (a chain of carbon) will cause the flame to not be sensed. Then the flame will burn out. A temp solution would be to unplug the stove, then unscrew and jiggle the flame rod to break the chain. When tightening the screws do not over tighten. You could also try hitting the edge of the pot to see if you can knock the carbon loose. You could also have a warped burner ring which would cause problems keeping the stove running.

Anonymous

  • 57 Answers
  • Posted on Jan 05, 2009

SOURCE: blower motor on toyostove laser 73

Replace the Blower Motor.

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We have a toyostove laser 73, we have concluded that the fuel is not getting to the burner from the fuel pump. ok from tamk to pump.

First try pressing the float reset on the fuel sump. If you hear the float drop then it was latched up and now you should be ready to go. If that wasn't it, turn off the valve at your oil barrel and check the filter if you have one and check the strainer in the fuel sump. The strainer is located on the right side of the heater at the bottom. 2 screws hold the cover for the strainer on. Let me know what you find if this doesn't get you going and if it does get you going, please rate my answer and give testimonial.
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My Laser-73 ignited then warmed for a minute,thenflased EE2. I have replaced the filter and I have 150 gallons of K-1. What do I do? The heater tries to start then shut down, then I get the EE2

There are several possibilities. You said you have plenty of fuel, but is it getting to the fuel sump. If the pump makes a loud ticking or thumping sound, it is not getting fuel to it. You may need to vent your filter to remove an air bubble. The heater also has a strainer inside the fuel sump that may need to be cleaned. Refer to the owner's manual for instructions for that. The fuel sump also has a reset button that releases the fuel float that may need to be pressed. The fuel nozzle sometimes gets clogged with carbon. You can remove the fuel line and insert a piece of wire (stiff wire) into the nozzle about 1-2 inches to remove it. Another problem may be a dirty flame sensor. You can clean it with steelwool. Since you say it lit I wouldn't suspect the igniter is bad. Also remove the top from the fuel sump clean the sump if necessary.
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I inherited a Laser 55 with an internal fuel capsule. If I hook up the internal capsule tank the kerosene fills up the fuel sump but once the kerosene fills the entire sump the kerosene will literal...

Hi John, I would say it is leaking because the needle valve in the fuel sump isn't shutting off the fuel flow once the level is where it needs to be. The sump is vented to atmosphere so the fuel will gravity drain to the sump. The fuel sump has a float like a lawnmower carbuerator. You can take the sump out and clean it and that may help. Kerosene will sometimes gel after it has sit a while. Carb cleaner usually does a good job. Let me know what you find. My uncle worked on these heaters for 20+ years then trained me. I have an old non working Laser 55 that has some good parts on it if you are ever in need.
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Getting an EE6 after relocating heater. Have fuel

EE 6 usually indicates a fuel problem. You said you just moved the heater. If the fuel pump is making a loud ticking sound it means it isn't getting any fuel. Try pressing the fuel reset located on the lower right side of the heater. There is a float in the fuel sump that can get latched up so that it will not let any fuel into the sump if the heater is moved or jarred or the sump gets too much fuel in it. You say you have fuel, do you mean in your barrel or is it coming out the fuel line behind your heater? It is possible you have an air bubble in your fuel line that you need to get out. Hope this helps.
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Getting code EE 2 on a laser 73 toyostove that runs on kerosene

EE 2 usually has to do with the fuel. Does the heater make a loud ticking or thumping sound? That's the sound the fuel pump makes when its not getting any fuel. Check your filter, check the strainer in the fuel sump. Depending on how cold it is any water in the fuel line could be frozen blocking the fuel flow. You might also check the flame rod for soot. It can be cleaned with some steel wool.([email protected])
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Could be water in your barrel. Did you replace the filter? It can freeze and block the fuel flow. Check the strainer in the fuel sump. Is your code EE 6 or EE 2. Depending on the code you may need to clean the flame rod.
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Toyostove Laser 73 burner not lighting after fuel tank refill Ideas??

This is probably a little late but I'm assuming you have an outside tank. When you had it refilled it may have stirred up the gunk in the bottom of the tank. You should check your filter at the tank if you have one. You should also check the strainer in the fuel sump in the heater that is located on the right side of the heater where the fuel reset is. You should shut the valve at the tank before you do this and be prepared to catch or soak up any kerosene that will come out. The strainer is located behind a small plate with 2 screws holding it on.
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Toyo Laser 73, starts, fires then goes out, flashes EE02

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problem cause solution
no ignition: out of fuel check fuel gauge or tank, refuel

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once

clogged flue pipe clean flue pipe

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it sounds like it may be a clogged strainer located in fuel sump or a bad circuit board hope this helps







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Toyostove laser 55

sequence of operation is just like the monitor. combustion blower comes on to purge chamber of fumes. after the delay, the solenoid pump comes on and deposits fuel to the burner mat, within 20 sec the igniter comes on, incandesces and ignites the fuel if there is no flame, the flame rod is supposed to shut down heater and go into a lockout condition until shut off or unplugged to reset. check solenoid pump first. you already know the igniter works. check the fuel filter in the fuel sump might be clogged. check the fuel sump float valve, might be stuck, supposed to hang free in the sump with needle valve open. thermostat is digital just starts and shuts down the burner and solenoid pump.
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