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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.
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.
If it is a regular gas hot water heater You need to turn the knob on the gas valve to pilot. Depress and hold the knob down. while doing that press the green button on the side of the valve . you may have to repeat that a few times. that button makes a spark to light the pilot. You need to hold the knob down for about a minute more to let the thermocouple heat up and signal the gas valve that it has a flame. release the knob . if the pilot flame stays on ,turn the knob back to the on position. If that does not work repeat if still not working give more info. Make and model of heater
Is there a "Pilot" marking on the knob? Try moving the knob 1/2 way between on and off and depress the knob. If you are in the correct location, the knob should depress in about 3/8 of an inch. Once you find the location where you can depress the knob, there should be a red sparker button that you can snap to light the pilot. Depress the pilot knob and snap the button a few times. There may be a small viewing port at the pilot. It may be covered by a small metal shield held on by a thumb screw. You can remove the shield to view the flame. OK so now you can depress the pilot knob, snap the sparker, look for the flame while still holding down the pilot knob and count to 30. Slowly release the pilot knob and check to see if the pilot is still on. Once it stays lit, rotate the knob to the "ON" position.
To light your pilot you will need to find the gas valve assembly. It will be a block of aluminum with a plastic knob and a few pipes attached to it. Once you find it, rotate the knob to the pilot marking on the knob. You will know when you are at the proper setting because you will be able to depress the knob into the gas valve about 3/8". Once you do that, there will be a small red button which you can snap causing a spark at the pilot. There may ba a small viewing port covered by a removable metal shield. OK, Depress and hold in the knob, snap the red button a few times. Keep holding the knob in, look into the viewing port for a blue flame. If no flame, snap the button a few more times looking for a spark. Once you see the flame stop snapping but continue to hold the knob in. Count to 30. Slowly let the knob out watching that the flame stays on. If it starts to go out, quickly depress the knob and hold for a minute. If it continues to go out, you have a bad thermocouple and it is not letting the pilot stay lit. If it stays lit, rotate the knob to On. A few seconds later and if the unit is calling for heat, it should light the main burner. If you need a new thermocouple, go to a good hardware store or Farm Center (bring the old part with you) and ask for a new one.
It's usually down to carbon clogging the pilot light. This typically happens where gas is on a meter like we have. Everytime the gas runs out, dust and other particles get sucked along into the nozzle where the pilot light is.
The best solution is to try cleaning it. I'd recommend trying to run the vacuum cleaner nozzle over it if you can (with it turned off of course) and perhaps even try cleaning it with a toothbrush (preferably an old one of course as nothing tastes worse than soot) and if this fails, let me know.
I'll give this a go!
With a cooker like this, you depress and then turn the control knob, press the ignition button and continue to depress the control knob for a few seconds. This is because a device called a thermocouple is heated by the flame and you have to continue to depress the control knob so that sufficient gas flows to heat up the thermocouple. If the thermocouple does not get hot or stay hot then the gas valve is automatically closed - stopping the gas. The thermocouple is a 'flame failure' safety device. If the gas gets cut off then the flame goes out and the thermocouple goes cold switching off the gas valve automatically.
However, you are having to try and manually keep the gas going for a good five minutes.
I would think that there is either a problem with the thermocouple or the gas control valve!
Do you have the serial number or the manufacture date? There are some design changes and I would need to know the year of manufacture to assist accurately. Usually it is a relay or the thermocouple connection that will affect the unit staying lit.
You pilot ignator is plugged.I take a small wire and run it in the hole every year and I also Blow the heaters out real well with air.THis has always worked far me.I need a phone number or email address to Pro Com because i'm having problems with a new one i just bought and I can't find the papework.Could you pleas eif you have this info email it to me