Question about Procom QL300TYLA Heater

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When control knob in"pilot" position, burners light, but pilot light and burners go out when released. Burners will not stay lit in any control knob position .

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Be sure and hold down the button long enough for all the air to excit the line especially when new or after an extended time of nonuse. Also after haing not been used for awhile lint will build up around the pilot blow it out good with compressed air . Or after all that it could be a faulty Thermo couple.

Posted on Jan 14, 2009

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It has a thermo-couple that lets the gas valve know that the pilot light is on. If it does not get the heat signal to the valve, it will not turn on the gas. The end of the thermo-couple has to be in the flame of the pilot, and tight on the other end, and must be tight on the other end.

Posted on Dec 21, 2008

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2 Answers

Pilot light won't light the burner


Clean the flame sensor with 0000 steel wool , the Ignition control module is typically at fault.

Mar 31, 2015 | Heating & Cooling

1 Answer

Pilot light blew out by a fan..I turned the control off..How do I Ignite Please


First locate where to light pilot. You can do this by following thin aluminum colored tubing from control valve to inside heater.In general on top of your gas control valve is a knob. Turn indicator of this knob to pilot and depress knob. This will start gas flow to pilot at end of thin tube. Hold this knob in the depressed position and light pilot. DO NOT release knob for 30 -45 seconds. Then release knob and pilot will remain lit. Then turn knob to on position. If pilot will not stay lit you may need a new thermo coupler, which senses heat from flame to keep pilot gas flow open.
Good luck

Mar 10, 2015 | Heating & Cooling

1 Answer

How to relight pilot on boiler


Every boiler will have manufacturer lighting instructions on the unit, so be sure to read it thoroughly and turn off the gas for 5 min to make sure there is no gas build-up around the boiler. Some have electronic ignition and some require a manual lighting of the pilot. If the control knob has only ON-OFF, it has electronic ignition. Simply turn off the power (at the electric switch on the boiler or at the breaker box) and then turn it back on and it will relight itself when heat is needed) If it has ON-OFF-PILOT, you will have to light it manually. You will have to turn the gas valve knob so the arrow is pointing at the word "pilot" and depress the knob, while lighting the pilot with a lighter or match. Continue to hold the knob down after the pilot is lit for about 30-45 seconds to allow the thermocouple to heat up. If you release the pilot knob and the pilot stays lit, you can turn the knob to the "ON" position and the burner will light. Please be careful. if you are not sure what you are doing, call a professional.

Mar 01, 2015 | Heating & Cooling

1 Answer

I changed the thermo coupler and the pilot light does stay lit but the burners won't light


If you are referring to a gas fireplace:

  • Make sure the pilot knob is turned from "pilot" to "ON" or it will never run.
  • If the pilot knob is "ON", and the pilot is lit, but the burner won't light, it could be a bad Thermopile. The thermopile is the other safety mechanism in the pilot assembly that controls the burner.

Dec 19, 2012 | Heating & Cooling

1 Answer

Have a dayton 3F405D propane greenhouse heater don't know where to light the pilot light.


Find where the gas line connects to the gas valve on the back of the heater, from the gas valve, follow a small aluminum tube going into the back of the heater. There may be a removable door to access the pilot assembly. If there is no aluminum tube, the unit has electronic ignition and no pilot lite. Turn the gas knob to off, then to pilot. Hold the gas valve in and with a long match or gas grill lighter, light the pilot. Continue to hold the knob in for about 30 seconds. After that, release the knob and check to make sure the pilot stays lit. If so, rotate the knob to ON. The thermostat will kick the burners on.

Mar 30, 2011 | Dayton (3E405) Gas Radiator Heater

1 Answer

I accidently turned the pilot off and I can't get it to turn on Williams Model# 2001622


Turn the control valve to the PILOT position and push down and hold it in. Press the Ignitor Button and continue to hold the Control knob down, once the pilot lights. Wait one minute, release the Control Knob and if the pilot remains burning, turn the Control Knob counterclockwise to the ON Position. If after the burners light and burn for a few minutes, you can turn the Control Knob back (Clockwise) to the Pilot position (if you don't want the heater to come on automatically) and the pilot should remain lit.

Hope this helped to get you back up and burning.

Mar 30, 2011 | Williams Heating & Cooling

1 Answer

How do i light the pilot?


Turn the Gas Control Knob inside the heater compartment from OFF to PILOT. Push in the knob and hold it, at the sametime push the ignitor button (will probably be a Red button). Once the pilot lights, continue to hold the Control Knob down for one minute. Then ease off of it. If the pilot stays lit, turn the Control Knob to the ON position. The burner should light, if the Thermostat is set higher than the ambient temperature in the house. If the Ignitor button doesn't work, you can match light the pilot. Just be careful and follow the instructions above, once it's lit.

Hope this helps solve your problem.

Feb 23, 2011 | Williams (5009622) Ceramic Gas Wall...

1 Answer

How do i light pilot light?


Remove front cover,or just lower section if you can. they usually just need to be lifted up about an inch or so and pulled out. However some have covers that snap in place. After you remove cover locate gas valve. It should have a control knob on top with markings for on, off, and pilot. Set control to pilot. Follow lines from gas valve to burner compartment, one goes to main burner one ,small copper colored line is the thermocouple, other line is the pilot. Turn thermostat down as far as it will go. Make sure gas supply valve in line to heater is on and then depress pilot control , when you have pilot control depressed have a match or other small flame source close to pilot assembly. If it lights then hold down on pilot control for a couple of mins. Slowly release pilot control and if it stays lit turn gas control to on. Turn thermostat up to call for heat and burner should light. If pilot doesn't stay lit when you release pilot control then try again holding pilot down longer. If it still won't stay lit then thermocouple will need replace. Good luck. Thanks

Nov 22, 2010 | Williams 6508732 Gas Heater

1 Answer

Greenhouse Heater pilot light will not stay lit


replace the thermocouple. it is a small copper tube that screws into the gas valve and goes to the pilot assembly. a good haedware store that sells heaters will have one. they come in various lengths 18"-48".

Nov 30, 2009 | Heating & Cooling

1 Answer

Nexgrill patio heater won't stay lit


I called Nexgrill technical support at 1-800-913-8999. They are sending me a new thermo couple to keep the valve open when ignited - so the patio heater will stay on. I needed to give them the serial number (inside the propane tank door) and fax them a copy of the receipt.

Hope this helps.

Jun 01, 2008 | Williams 2509612 Ceramic Mid-Size Heater

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