Empire BF-10 Mid-Size Heater Logo
Posted on Feb 27, 2011
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Pilot light stays on but after a few minutes the heater shuts down, pilot as well. has plenty of oxygen. pilot flame has a yellow tip on the end of blue. empire brand

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  • Master 4,736 Answers
  • Posted on Feb 27, 2011
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The pilot orifice and the Oxygen Depletion Sensor (ODS) need to be cleaned. You can accomplish this by using canned compressed air with a straw nozzle (like you clean your computer with).

Turn off the gas, allow the heater to cool and dismantle the front half potion of the heater. There are 6 to 8 sheet metal screws that hold the 2 halves together. You'll probably find a lot of dust & lint inside the heater. This will need to be cleaned out with a vacuum that has a hose and crevice tool attachment.

Once you have accomplished that, turn your attention to the pilot assembly. Using the canned compressed air withe straw nozzle, blow out the pilot tip with a qucik shot of air. Now, look down the pilot from the tip and about 2/3rds of the way down, you'll see a hole in the side of the pilot. That's the ODS sensor. Stick the straw nozzle just barely into this hole and give it a quick shot of air. You'll probably see debris fly out the other side.

Before you reassemble the heater, turn the gas back ON and light the pilot, but do not light the burner(s). Is the pilot lighting and holding. Is the pilot flame straight or is curling up? If it's curling up, turn the heater off and repeat the pilot cleaning procedure. If it's straight out, reassemble the cabinet and your ready to go.

Now, take a moment and pat yourself on the back. You just completed what's called "Annual Maintenance", which should be done at least once a year, usually in the Fall, before lighting the heater for the season.

Hope this helped you solve your gas heater problem. Please let me know.

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0helpful
1answer

Rfn30ta gas heater dont stay lid
The most common problem with these types of heaters is dust build up in the pilot. If your pilot light is mostly a yellow flame you need to blow out the pilot of dust.

Turn off the unit. Remove the cover to expose the pilot. You should find two small holes about an inch or two below the tip of the pilot. Those holes are for mixing oxygen into the gas prior to it lighting. Blow those out with a can of compressed air and you may as well blow out the large burner also with the can of air. Wipe down everything with a damp cloth to remove additional dust.

Sometimes the pilot will light and stay lit, but when the burners turn on the flame moves slightly and pulls the flame away from the thermocouple. Either way this is a good idea to do every year or two on your heater.
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Nov 11, 2013 • Heating & Cooling
5helpful
2answers

Will light ,but keeps shutting off and wont go on high only on low.
Form what you have described it sound like the Oxygen Depletion Sensor(ODS) is clogged with dust, lint and/or pet hair. Therefore, the ODS reads the oxygen level in the room, as unsafe for operation and doesn't allow it to light and hold.

You can clean it yourself by removing the front half of the heater cabinet after turning the gas off to the heater.

You'll need a vacuum cleaner that has a hose and brush attachment (a shop vac works real well).
a can of compressed air with a straw nozzle (like you clean your computer with) and a flashlight.

Once the front half of the cabinet has been removed and set off to the side. You will have access to all the inner workings of the heater. Plus, if it hasn't been serviced annually, you find a lot of dust and lint.

Using the vacuum with a hose and brush attachment, vacuum all of the interior (including the burner(s) that you can safely reach. If your heater has an optional blower, vacuum that too.

Once the vacuuming is complete, take the can of compressed air with the straw nozzle attached and blow out the pilot tip where the flame comes out. With a flashlight, look down the pilot assembly from the pilot tip and about 2/3rds of the way down you will see a small hole in the side of the pilot assembly. That's the ODS sensor. Place the tip of the straw nozzle just barley into that hole and hive it a quick blast of air. If you watch closely, you will see debris fly out the other side.

Now, take a look at the Thermocouple (by the way, it's not a "Thermocoupler"). If it's a stand-a-lone thermocouple (Brass rod that sticks up in front of the pilot tip), does it look ashy or white? If so, take a strip of very fine sandpaper or emery paper and polish the thermocouple. You don't want to sand it down ... just polish it. After completing that, take a cotton ball dipped in alcohol and wipe the thermocouple tip off.

Before reassembling the cabinet, turn the gas back on and try lighting the pilot. It probably won't light the first time, because there's air in line from the gas line shutoff valve to the heater. If it doesn't relight immediately, hold the control knob down in the Pilot Position until you smell gas. Let off and wait 5 minutes, before trying to light the pilot.

If the pilot lights and hold after you have held the Control Knob in for one minute. Ease of the control knob and turn the knob to the ON position. The burner should light. Take note of the flames and their color. They should be Blue with Yellow tips. And the burner flames should be coming from all the little burner ports (holes).

If it all checks out well, turn the heater off, allow it to cool and reassemble the cabinet.


I hope this helps to solve your problem.

Rich
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Feb 10, 2011 • Rinnai Unvented Gas Zone Heater. 99% fuel...
1helpful
1answer

My heater keeps cutting off pilot and shuts down. There is no air in the lines! Thought maybe it was the safety shut off switch or thermostat.
Yes, it is a safety shutoff. More than likely the Oxygen Depletion Sensor (ODS) is clogged with dust, lint or pet air.

To clean it, turn the gas line feeding heater off. Remove the front part of the heater cabinet. This will expose all of the inner workings. You'll probably find a lot of dust and lint, so use a vacuum cleaner with a hose and brush attachment to vacuum all the areas you can safely reach. Do this gingerly. Look for the Pilot Assembly (it won't be hard to find). Using Canned Compressed Air and the Straw Nozzle (Like you clean your computer with) hold the can as upright as possible and place the straw nozzle just into the tip of the pilot. Give a quick blast of air. Now, look down the pilot from the tip and you should see a hole in the side of the pilot. That's the ODS. Place the tip of the straw nozzle just barely into the hole and give it a quick shot of air. That will blow out any debris.

Reassembly the cabinet, turn on the gas line, purge the air from the line by pushing the control knob down and holding down for several minutes. Let off the knob, wait 5 minutes and try lighting the pilot. If it does light immediately, there may still be air in the line. Continue to try lighting until you get a pilot flame. Hold the Control Knob in for at least a minute, slowly let off. If the pilot stays lit, turn the Control Knob to On. That should solve your problem. If it doesn't, you may need to replace the thermocouple.
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Feb 02, 2011 • Dyna-Glo D-E37 Wall Mounted Panel Heater
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I have a PROCOM Model ML 300TBA, two years old. Lights fine, pilot stays lit fine, flame comes on fine. When I go back the next morning I am finding the unit is completely out. No flame, no pilot. I...
Could be dust in the pilot however this heater is designed to shut down when oxygen levels get low in the room MORE HERE

If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61

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Dec 23, 2010 • Procom ML300EBC Heater
2helpful
1answer

Williams 3003622 Wall Mounted 30,000 BTU The pilot light goes out when the main flame shuts down. The pilot light will stay lit for days when heat is not called for but when heat is called for the furnace...
I'm having the same exact problem... At first we thought was the vent... but the way the flames goes out... it seems that there is "not enough oxygen" more than "blown out by the wind"... right after both main & pilot goes out, I can't even light any external flame inside the chamber... and it doesn't feel like the outside cold air coming in... it just feel like there is some sort of gas in the chamber that's so strong, it prevents flame... and the only thing I can think of is that it doesn't have enough oxygen, but too much natural gas, and flame can't sustain.
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Nov 02, 2010 • Williams 3003622 Ceramic Wall Mounted...
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My patio mushroom heater lights up ok but keeps going out by itself after about 5 to 10 minutes and then can be started again inatantainiously by starting pilot light and away you go until it goes out...
Hello,
Here's a few things to check. When you light the pilot, is it a strong blue pilot flame, a weak blue flame or a lazy yellow flame? Is it heating the thermocouple enough to make it red hot after a few minutes? If the pilot is small blue or lazy yellow flame, it may be dirty and need cleaned. When the burner lights, the weak pilot flame may diminish causing the thermocouple to cool off enough to shut down the main burner. Clean the dirty pilot orifice by using a can of compressed air with attached straw. (The same canned air you use to clean computer keyboards) Blow it into the pilot assembly where the pilot flame burns out from and blow thru the air holes on the side, if applicable. You might also check the thermocouple itself to make sure the tip is not partially burn't off. It should be a smooth, rounded tip. Replace the thermocouple if cleaning the pilot orifice doesn't solve the problem. Douglas
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Aug 05, 2010 • Coleman (5040B750) Patio Heater
1helpful
1answer

Pilot light will not lite; plenty of propane. What position does the knob need to be in to lite the pilot. I see pilot, on, and off positions. It is a Williams gas unit direct vent, does not blow hot air...
Hello,
The knob needs to be turned so the arrow is pointing at "Pilot". It is the only position you will be able to depress the knob all the way down. Once you light the pilot, keep holding down the knob for 30-60 seconds. When you release the knob, the pilot should stay lit if it's working properly. If not, here's a few things to check. Is the pilot flame blue? Is the flame actually heating the thermocouple end? The thermocouple has to get hot enough to allow the gas to stay on to the pilot. Also look at the tip of the thermocouple. It should be smooth and rounded. If you're pilot flame is a lazy yellow, after time it will burn off the tip of the thermocouple, causing pilot outages. Replacing the thermocouple is usually the easiest fix it and is probably what you will need to do. But if your pilot flame is that lazy yellow, you will also need to clean it by either a tiny broach needle or using canned air (with straw attached). Be careful and because propane is heavier than air, smell low to the floor before lighting it to make sure there is not a gas leak. To be safe, close the gas shut off valve and air out the room before lighting and always follow the manufacturer's lighting instructions printed on the heater. If doing this seems too difficult or scary, then call your local propane co and they will send out a serviceman to fix it for parts and labor. Good luck! Douglas
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May 25, 2010 • Heating & Cooling
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Pilot turns on but when I switch to turn it on,
When you light the pilot, are you holding it down for 30-60 seconds. When you release the pilot button, does the pilot flame stay lit? Or does it only go out when you turn the knob to on position. Make sure the pilot flame is heating the end of the thermocouple and that it's a strong blue flame, not a lazy yellow pilot flame. Make sure the tip of the thermocouple is not burn't off, which usually happens with lazy yellow pilot flames. Replace thermocouple is nothing else works.
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Lights, goes out in a minute
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Heater will not stay light
I had this same problem and the only thing that I found was a small spider web in the pilot air intake which had traped a small piece of lint I blew this out and the heater worked great
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