Question about Empire ECS HearthRite HR25EL Heater

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Weak pilot light

Not enough gas coming through the pilot to make contact with thermocouple

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I have a CGN 300TB natural gas heater, I can light the pilot and it stays lite until I turn the knob to increase the volume. I put a new thermocoupler on but didn't help. Any suggestions.


First make sure that 3/4" of the end of the thermocouple is engulfed within the pilot flame and that it is glowing red prior to releasing the button. This takes 30 to 45 seconds usually. The thermocouple generates a miniscule amount of electricity....like 1/4 of 1 volt...(250 millivolts tops).... and inside the gas valve is a saftey coil that requires that voltage to remain open electrically when you release the button which was bypassing the coil to allow pilot gas through. IF the thermocouple is not generating enough electricity, the coil will drop out....IF the coil is bad, the coil will drop out...and IF the coil is weak it will drop out. When the coil drops out, the pilot gas quits flowing and main gas cannot pass because in order for the main portion of the gas valve to open, the safety coil must be held open.

You probably either have a defective new thermocouple, dirty and small pilot light, or a totally defective or weak coil in the gas valve.

Jan 02, 2015 | Heating & Cooling

3 Answers

PILOT LIGHT KEEPS GOING OUT.


If the pilot flame is weak, when the main burner is ignited, there can be enough 'whoosh' of air and gas to blow out the pilot. There may be a little of grit in the pilot valve jet hole restricting the flow, hence the weak flame. Try using a piece of fine wire to clear the obstruction. If that does not help the pilot jet will have to be unscrewed and cleaned with compressed air. Ensure the gas is turned off before attempting any maintenance.

Sep 13, 2010 | Reliance Water Heater #6-40-GBRS 40GAL...

1 Answer

My hot water has gone off. It was working this morning and the pilot light has not gone out. How can I check for other explainations?


The pilot light is working so you know you have gas but you also know that the gas is not coming on. The pilot flame should be bright blue with the tip of the flame having a ting of yellow. A yellow flame is caused by a dirty pilot tube tip. Split flame is caused by dirt in the pilot tube. If the flame is not hot enough it will not tell the thermocoupler to turn the gas on. If the thermostat has not been moved and is still at the correct setting then I would suspect the thermocouple is bad. The thermocouple is mounted right next to the pilot light. It senses if the flame is hot enough for the gas to come on. If the pilot flame is not touching the coupler then it will not allow the gas to be turned on to the burner. Check the thermocoupler and see if the flame is touching the probe on the end. If not adjust it until the pilot flame is touching the coupler. If the flame is properly adjusted then replace the thermocoupler but shut off the gas supply before doing so. It will look like this. 0ec43e2.png

Apr 25, 2010 | Water Heaters

1 Answer

Pilot light not staying lit, changed thermocouple, start up proceedure normal until the pilot button released.


Some things to check:

Make sure the thermocouple is squarely in the pilot flame and that the pilot flame is large enough to envelop the thermocouple. A weak pilot can be caused by gas pressure or a carboned-up pilot orifice (where the gas comes out). The orifice may need to be cleaned. Ordinary automotive carburetor cleaner will work. Don't try to stick objects into the orifice - damage may result. If you need to perform this step, make sure the gas is turned off to the heater first.

Make sure the other end of the thermocouple is clean and tight in the gas valve.

Hold the pilot plunger down for at least a minute to be sure to give the thermocouple enough time to heat up.

Mar 15, 2010 | Water Heaters

1 Answer

Have a 1986 Fleetwood Park Model with a Magic Chef gas oven that will not light. The pilot is lit but the oven burner will not come on. Uses propane gas...it worked last year.


Propane is a "dirty" gas. That can sometimes result in a particle of debris getting lodged in a pilot orifice, causing a low pilot flame. Inspect the burning pilot, look to see that the pilot flame encompasses the thermocouple so that the thermocouple may get hot enough to open the gas valve. If the pilot is too low, sometimes tapping on the pilot assembly with some handy tool will dislodge any restricting particles from the pilot orifice and restore flame size. Make sure that the pilot or thermocouple have not been struck by some object and knocked out of place. If the flame and thermocouple seem OK, you may have a bad thermocouple. Before replacing the thermocouple, loosen and re-tighten it's connecting nut at the valve (follow the thermocouple "wire" to find the valve) , if the connection is poor, sometimes that will restore good contact.
Also to note: the pilot will be at minimum when the control valve is "off", the pilot flame size should at least double when the control valve is turned on. Be careful, that is gas you are working with.

Feb 03, 2010 | Magic Chef Kitchen Ranges

2 Answers

Will not light, the pilot light comes on but when I light the knobe out to turn it to the on position the pilot light goes out.


Dirty pilot safety most likely.If dust gets into the ODS chamber the safety feature will think the oxygen in the room is low and shut down. I would try cleaning it first and if that don't do it then the thermocoupler is weak not holding when the valve is advanced to the ON position. I have some Literature HERE and a nice movie which features the safety pilot in action HERE

Jan 24, 2010 | Heating & Cooling

1 Answer

Can't get pilot light to light. Comes on


you can only test this with a volt meter capable of testing milivolts. or replace the thermocouple. the thermocouple is what the pilot flame is burning onto. the pilot flame could also be weak due to a dirty pilot orifice in which case the flame will appear lazy and yellow /orange. the thermocouple should test 30mv + - 10% you should contact a service company if replacing the thermocouple doesnt fix because gas isnt somthing a un-qualified DIYer should risk there home with.

Sep 24, 2009 | Heating & Cooling

1 Answer

Kenmore gas oven model no. 273 3248296 pilot free ignition wont fire up


Hi

If it won’t fire then it is possible that the oven control is not sending gas for the pilot light. The pilot light works but no main burner ignition - possible pilot assembly is dirty and the pilot flame is too small, safety valve and thermocouple is faulty, the bulb from the safety valve is out of position and the pilot flame is not touching the thermocouple bulb. Some ranges use a standing pilot light ( small flame is on all the time ) while others use an spark ignition to light the pilot light flame and the pilot light flame heats up the thermocouple bulb to allow the main gas to flow through the oven burner.
The flame needs to heat the bulb up enough to tell it to open the gas valve. Several things can go wrong here that keep this from happening:
The pilot flame may not be hot enough, usually because the flame is yellow instead of pure blue or is too small. The cause for this is usually a dirty pilot assembly. The pilot assembly would either need to be cleaned or replaced.
The thermocouple bulb may not be positioned properly in the flame. You can't heat the bulb properly if it's not in the pilot flame! The thermocouple bulb needs to be in the upper third of a pure blue pilot flame--that's the hottest part of the flame.
The thermocouple itself may be burned out. It happens. It's an internal part of the gas valve so, no, you can't just change the thermocouple bulb separate from the gas valve.
But when you turn on the oven or the thermostat calls for heat, the pilot flame gets bigger and jumps down so it can heat up the thermocouple bulb. This extra gas to increase the pilot flame size comes from the thermostat.
If the pilot flame jumps upwards or just gets bigger, but doesn't shoot down, then you need to replace the pilot assembly.
If the pilot flame size does not increase or jump down when turning on the oven thermostat, then the problem is the thermostat not sending enough gas to the pilot assembly. It's also possible that the pilot gas supply tube has a hole in it somewhere.
One final point on the spark-assisted pilot ignition systems. The spark comes from the spark module--the same module that sends spark to your surface burners to light them up. If you're not getting a spark when you turn the oven on, then there are several possibilities:
There could be a problem with the switch in the thermostat. You can confirm this by doing a simple continuity test of the thermostat contacts. If you don't read zero ohms when you turn the switch on, replace the thermostat.
The spark module could be bad. You'll need to measure the voltage at the oven terminals of the spark module when you turn on the oven. If you get 120v but no spark, it's probably a bad spark module. Replace it.
Could be a bad spark wire or broken electrode.

Please do rate the solution and revert for further assistance.


Thanks
Rylee

Sep 10, 2009 | Kenmore Ovens

1 Answer

Pilot light won't stay lit.


Ensure that gas is getting to the pilot , or you may have a devective pressure regulator.
If gas is getting to pilot and pilot is turning off, then you need to replace the thermocouple.
The thermocouple function is to turn off the gas if there is not enough temperature, so to prevent gas leaks if the pilot light goes off.
Near to the pilot light there should a part similar to a small metal tube directly in contact with the flame. Thermocouple is wired back to the gas valve.
When the pilot is on, and temperature is steady, the thermocouple will generate a small voltage that will keep the gas safety valve open. In case the pilot light goes off, the thermocouple will cause the valve to close. When you hold the pilot light button , the thermocouple will normally reach enough temp to keep valve open.
If the termocouple is faulty, it will turn off as soon as you release the igniter button.
Replacing thermocouple is an easy repair.

Call the number listed on the owners documentation to get the replacement part.

Sep 05, 2009 | Imperial IFS40 Deep Fryer

2 Answers

My pilot light will light, but will not stay lit? I have a gas whirpool water heater aprox 1 1/2 years old.Thisis the first time we have encountered any problems with our appliance.


Once the flame has struck it heats up a thermocouple that in turn holds the gas valve open

It is a safety measure in case the flame blows out and the gas keeps on coming.

Sometimes the end of the thermocouple gets dirty and a scrub with a fine emery board does the trick

If not it is a new part (They are not that expensive)

Jul 07, 2009 | Whirlpool Water Heaters

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