Question about Rinnai Toyostove Direct Vent Heater: Toyostove Laser 73 Shipping

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Laser 72 exhaust blower noise

Starting several months ago the exhaust blower makes a constant, steady racket. Local dealer says it is probably fan blades fouled with carbon (as it is in the exhaust stream) or maybe a bad bearing. Being a cheapskate I would like to try to fix it myself. Owners literature is long gone. Does anyone have experience with this problem, and know where I can get schematic and/or parts? If it is really just carbon I should only need gaskets.

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Re: Laser 72 exhaust blower noise

I have a laser 72. Several years ago, it began making a racket sounded like the squirral cage fan was hitting something. The only way I found to fix the problem was to remove the blower assembly case and place a small, about 1" long, piece of rubber tubing between the bottom of the motor and the case. This pushed up slightly on the motor which releived the fan. Randy

Posted on Jan 14, 2008

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Re: Laser 72 exhaust blower noise

The combustion blower sucks in clean air so it has no place in the exhaust stream. hence no carbon build up. the blades of it look like a vacuum disk on a vacuum cleaner. if the fan was recently rebuilt, make sure of the placement of the bushings. if one is misplaced the fan will rub on its housing and make all kinds of racket.

Posted on Dec 16, 2007

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Toyostove Laser 73 has EE8 code after we had an electrical outage. The blower fan is not stuck. Could the loss of power damage the fan motorr? Where do we purchase a new fan motor?

Probably wasn't so much the loss of electric power, as it was perhaps, a surge when it came back on that could have damaged the fan motor
You should be able purchase a new fan motor from the dealer your bought the heater from. Or if that's not an option, go to and search for a authorized dealer close to you. That way, you can be sure you're getting an OEM part.

Hope this helps resolve your problem.

Feb 26, 2011 | Rinnai Toyostove Direct Vent Heater:...

1 Answer

It saying ee8 blower on da laser 73

EE-8 is for a blower motor malfunction. It could be due to carbon build up on the exhaust fan blades. Remove the front cover of the heater. Now locate the blower. There is a black rubber boot that goes from the bottom of the heater to the blower. Remove that boot. Use your finger or a pencil or whatever to reach in the hole and turn the fan blades. You may here a crunching sound from the carbon breaking up. Turn it until it frees up. If it turned freely to start with, you probably need a new blower motor. If it was hard to turn and you free it up, you will probably be OK.Let me know what you find. I have a used blower for a Laser 72 that should work for your Laser 73.

Dec 31, 2010 | Rinnai Toyostove Direct Vent Heater:...

1 Answer

It saying ee8 blower

EE8 is for blower motor malfunction. It could be the motor, bearings or the speed sensor.First I would either remove the exhaust pipe from the back of the heater or take the front cover off of the heater and remove the black rubber boot from the fan (easiest). Then use a pencil or screwdriver or something similar to reach into the fan and try to turn it. Carbon builds up on the exhaust fan over time and may cause the fan to stick. Turning may break the carbon loose and free up the fan. If that doesn't get it, you are probably going to need a new blower motor.

Dec 30, 2010 | Rinnai Toyostove Direct Vent Heater:...

1 Answer

Our Goodman furnace just started making a a very loud grinding noise when the furnace turns on. Also the temperature in the house keeps dropping so we have to keep adjusting teh thermostat. Any advice on...

If it makes the noise before the blower comes on it would be the exhaust fan. If it makes the noise when the blower comes on then I would say either the blower motor or bearings to the fan.

Dec 27, 2010 | Goodman GMS90703BXA Heater

1 Answer

Error reading ee8

EE 8 is for a blower motor problem. It could be the sensor that checks the blower speed or it could be the blower not running. If the blower is running, the sensor is bad and you will need a new blower. If it isn't running then you may be able to fix it. Sometimes on the Laser 73, soot and carbon will build up on the exhaust fan blades. Remove the fresh air hose, that is the rubber on the back, and look for the fan blades. If you can see them turn the heater on and see if they are turning. If not turn the heater off and try to turn them with your finger. If you hear a noise like something rubbing when you turn it or feel some resistance, keep turning it until the noise stops or it frees up. Now turn it on again and see if the fan runs. If you don't have anywhere local to get parts I can get them for you. You can contact me at I may also have a used blower that will work.

Nov 14, 2010 | Rinnai Toyostove Direct Vent Heater:...

1 Answer

I need an exploded view of the toyo 30 heater. Some thing is loose in the fan and it makes a racket when running... I suspect a vole (I live in Alaska) tried to build a nest....

Go to . Click on owner's manuals and look for the pdf file for the LR-30. The parts break down is on page 7. Part #40 is the blower motor, part# 41 is the fan, and the cover it shows behind the fan doesn't give a number. You should be able to just remove the screws from the back and open the blower.

Nov 06, 2010 | Rinnai Toyostove Direct Vent Heater: Laser...

1 Answer

Dumb Question


NO, Rinnai and Toyotomi (Laser) are not the same. A simple Google search would make that clear. Now, a new blower motor with case for a Laser 73 comes complete. Fans, motor and gasket all put together, ready to plug in and go.

You would be better off contacting a local dealer for your parts. NO authorized Toyotomi dealer is supposed to sell parts over the internet. A Toyotomi dealership is a valved item. It is meant to help sell and service the Toyotomi product in the dealers local area. It is a great help for someone to be able to call his local dealer and have that guy come right over and help you out.

Saty warm,

Tom Hawkins
Bethel, Alaska

Mar 06, 2009 | Rinnai Toyostove Direct Vent Heater:...

1 Answer

Lazer 73: blower making a lot of noice

G M,

Your stove does need to be overhauled. The vibrations are the blower exhaust wheel being out of balance due to carbon build up. If it has been vibrating for a long time you will need to replace the motor. The L73 motor bearings are hard to get off without either bending the shaft or breaking the rev sensor. The burner pot will be another part that may need changing. It may have a warped or cracked bottom. If this is so it needs to be replaced with a new one. The burner ring will have to be replaced as will the mat. Several gaskets will need to be on hand in case you break them. All toll the above will run around $400 or so. It's well worth it considering a new one is $1750 or so. The first thing you need; though, is a service manual. Get in touch with your local dealer and get one. It will make your repair much easier.

Tom Hawkins

Feb 26, 2009 | Rinnai Toyostove Direct Vent Heater:...

1 Answer

Toyo 73 makes constant noise when running

Could be the blower or fan motor if you haven't had it cleaned in a while.

Nov 24, 2008 | Rinnai Toyostove Direct Vent Heater:...

3 Answers

Toyo L-30 Start up noise

before the heater starts up, the combustion blower starts to purge the chamber of unburnt gases, then the solenoid pump, pumps fuel onto the burner mat, shortly thereafter the ignitor turns on and ignites the kerosene. what you are hearing is the combustion blower. its a small motor with a rather large vacuum impeller on it. it sounds like a jet engine when it first starts. there are two bearings on this motor shaft. yours evidently are dry - no lubrication. replace the motor or if you have the equipment purchase two sealed ball bearings and press them on the shaft.

Nov 05, 2007 | Rinnai Toyostove Direct Vent Heater: Laser...

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