Question about Williams 3003622 Ceramic Wall Mounted Panel Heater

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Heater will not run more than 1 cycle.

You can light the heater and leave it on pilot as long as you want and it will never go out, once you turn it on it will run a complete cycle then shut off normally. The next time it tries to come on it goes out immediately. It does this faithfully every time!!!!!!!!!!!!!!! Help.

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Check your thermocouple. You should never leave it on pilot to run. The Thermocouple detects flame and it doesnt seem like it is detecing the flame. You can go to a local appliace shop and pick up your new thermocouple

Posted on Feb 19, 2009

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Kozy world propane wall heater pilot will not light


This can be caused by several things:

1. The inline gas valve running to the the heater is OFF. Turn the valve ON.

2. The gas control knob on the heater is not exactly in the PILOT position. Unless the knob bottoms
out and you feel strong pressure (other than spring pressure) pushing back at you. It's not exactly
in the PILOT Position. Once the pilot lights, hold the control knob in for 30 seconds to 60 seconds
to allow the Thermocouple to full heat.

3. The pilot is dirty and needs to be cleaned, as do the burners.*

4. The LP Gas Tank is empty or to low to maintain te proper gas pressure.

* Here is a link to a demonstration on how to properly clean the pilot & burners.
http://www.desatech.com/techDocs/Cleaning%20Demonstrations.pdf

I hope this helps you to troubleshoot & solve the problem. Thanks for choosing FixYa.

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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


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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1 Answer

Procom qd 250 keeps shutting off


If the pilot light keeps going out, the pilot and Oxygen Depletion Sensor (ODS) need cleaning.

What you'll need: A Phillips head screw driver. A can of compressed air with a straw nozzle )like you clean your computer with).

Be sure has is turned off to the heater. Remove the front cover of the heater cabinet by using the phillips scew driver to remove 4 to 6 screws around the outer edge of the cabinet. Once that's complete you will have access to all the components of the heater. If you see a lot of dust and lint inside the cabinet, use a vacuum cleaner that has a hose and brush attachment, to carefully vacuum all of the interior. Once that's completed look for the pilot assembly. Once you have located it, use the canned compressed air with the straw nozzle attached, to blow out the pilot tip. Just one quick shot of air should do it. Now, move your attention about 2/3rds of the way down the pilot from the flame tip and you will see a small hole in the side of the pilot. Using the canned compressed air and straw nozzle, put the tip of the straw just barely into the hole and hive it a quick, firm shot of air. You will probably see debris blowout the other side.

With the front of the cabinet still removed, turn the gas back on and try to light the heater, just as you always have. It may not light on the first try, because their may be some air in the gas line. Once the pilot lights, continue to hold the Control Knob in for 1 minute. Then ease off the Control Knob. If the pilot stays lit, wait one minute and turn the Control Knob to ON. The burner(s) should light and function as they should. Turn the Control Knob back to Pilot and look at the pilot flame. Is it curling up and away from the Thermocouple? If it's not, your problem is solved. It is curling up and away from the Thermocouple, Turn the Pilot OFF and clean the pilot again with the compressed canned air.

Reassemble the heater cabinet and pat yourself on the back. You just completed what's called "Annual Maintenance". Which should be done every year, before you fire up the heater for the Fall and Winter.

Hope that this helped in solving your problem. Please be kind enough to let me know.

Feb 24, 2011 | Heaters

1 Answer

How di i light the pilot light


Be sure that the gas line to the heater is ON.

Looking at the Control Knob on top of the heater, you note that he knob has 3- positions: OFF, Pilot, ON.

Turn the control knob to the Pilot position and push down on it. If it does not go all the way in and your do not feel strong pressure pushing back at you, it is not directly in the pilot position. (Reposition the knob slightly and try again). Once You're sure the knob is directly in the pilot position and the knob is depressed, continue to hold it in and press the Ignitor button next to it. You will hear a loud click. If possible, watch the pilot assembly inside the heater when you do this. That way you can see if the pilot lit the first time. If not repeat, pushing the ignitor.

If the gas line had been turned off to the heater, the pilot may not light the first couple of tries, due to air being in the gas line. If that is the case, hold the control knob in until you smell gas, let off, wait 5 minutes and repeat the lighting sequence.

Once the pilot does light, continue to hold the control knob in for 1 minute. This will allow the Thermocouple to heat up completely. Ease off the control knob and the pilot should remain lit. If it does, turn the control knob to ON and the burner will light.

Now you're ready to set the temperature or comfort level. You do this by raising or lowering the flame height. The higher the flames, the more heat it puts out. The lower the flames, the less heat it puts out. The stripe on the knob represents the flame heights - Narrow stripe, lowest setting, widest strip, highest setting. Or your specific model may simply say Low, Medium, High.

If you do not have the Owners Manual for this heater go to http://www.desatech.com/
click on Wall Heaters and enter the Model Number of your heater. You can then download and print the Owners Manual.

Hope this helped to get you up and runnig.

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1 Answer

My new heater keeps going out, the heater man comes over lights it, then leaves, we turn it to the off. We go to turn it on later and the pilot light is out and we can't light it. This has happened three...


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1 Answer

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sounds like a bad thermostat.I am not to familiar with this problem.
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1 Answer

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Check regulator on the unit.
Check pilot unit on the heater
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