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Sunjoy L-PH 018PS Patio Heater pilot failure repair

What is likely happening is that the pilot flame cannot reach the thermocouple. This is usually caused by corrosion or other blockage of the gas to the area where the pilot lights. Thus resulting in a small flame or no flame on the side the thermocouple is located. Fix this by cleaning out the corrosion or other blockage in the pilot assembly. I have found that small spiders like to make their homes here which causes the blockage of the gas for the pilot. The pilot assembly has three parts to it. The ignitor electrode, the pilot light tower, and the thermocoupler. The ignitor electrode has a wire that goes from it to the push button ignitor. The pilot tower is located in the middle and has a gas line going to it from the gas valve (control knob). The thermocoupler stands next to and on the opposite side of the ignitor electrode. It also has a copper line from it to the gas valve.

Unfortunately, the Sunjoy you have, which is the same model of two I have to keep running, is difficult to service. Parts are not readily available either so be careful when you take it apart. They do not sell the individual smaller parts in this model and therefore make you buy complete assemblies.

To clean and service the pilot assembly, remove the screws holding the front plate on where your control knob is. Once that is removed you can see the back of the ignitor, it is black and has one wire coming from it leading up to the ignitor electrode. You will also be able to see the small gas line from the gas valve going up to the pilot tower and the small copper line from the gas valve to the thermocoupler. That assembly is what you need to get to, to clean.

You do that by removing the top canopy by removing the three screws holding it down. Once that is removed, remove the center nut on the heat exchanger (the part that heats up with all of the little holes). It is located on the top and in the center of the heat exhanger. Then remove the three screws that are located around the bottom of the heat exchanger that connects the collar to it. You should be able to remove the heat exchanger now. Tilt the whole heater down and prop the neck on something so you can work on it.

If you look in the top you will be able to see small metal box covering the pilot assembly. This is held onto the pilot assembly with two screws. Remove those screws and carefully remove the box. Now remove the two screws that holds the pilot assembly to the collar (located on the outside of the collar). The gas and copper lines will hold it up. If you look at the pilot assembly from the top you will see one screw holding the ignitor electrode to the pilot assembly bracket. Remove that screw, unplug the wire from the ignitor and remove the ignitor electrode from the assembly. Be careful not to break this and I am having you remove it so that you do not break it.

Now remove the nut that holds the thermocoupler onto the pilot assembly bracket and pull it out of the bracket. The copper line will hold it up and be careful not to kink the copper line. Take a piece of sandpaper and clean the outside surface of the thermocoupler. Corrosion on the thermocoupler could cause it to fail which will cause the pilot not to stay lit. I have not had one do that yet but it could happen.

Now, remove the gas line from the bottom of the pilot tower so that the tower and bracket are in your hands. Put it down and put the heater back up straight. Hook up your gas and turn the gas on. Now, press the control knob on the pilot setting to make sure you have gas coming out of the gas line that feeds the pilot. You should be able to hear, feel and smell it. If not you have a regulator problem or an empty tank. Turn off your gas, remove it from the heater and tilt the heater back down.

Take your pilot assembly, you will see a circular top to the pilot tower that is held down with really small metal ears. Carefully bend the ears back with a needle nose pliers so that you can bend the top of the tower back. Only bend it back far enough to clean the inside of it with a bent wire and compressed air or something. If you look on the lower side of the bracket, above where the gas line is threaded on you will see a hole that goes all the way through the assembly. This hole regulates the pilot gas pressure and allows the gas to mix with the air before it burns. Make sure that hole is clear of debris and take wire or something and thread it through the hole up through the top side of the tower.

When you have it clean, reconnect the gas line, thermocoupler and ignitor electrode. Once reconnected and before screwing the assembly back to the collar, I set the heater back up right and reconnect the gas. I then light the pilot to make certain you have a good strong pilot light generously touching the thermocoupler. The pilot should stay lit after holding the button in for a few seconds. Do not turn the heater on past the pilot area without the heat exchanger on or you might singe your hair. If the pilot works the way it is supposed to, turn it off, disconnect your gas, tilt the heater back down and reassemble it following the intructions in the opposite manner.


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RELAINCE 606 GAS WATER HEATER. WE RECENTLY HAD THE BASEMENT FLOOD DUE TO ALL THE RAIN. WE NOW HAVE NO HOT WATER, I AM SURE DUE TO THE FLOODING, BUT CANT GET THE PILOT LIGHT RELIT! HELP


If keeping the thermocouple bypass pressed keeps the gas flowing to the pilot but the flame goes out when it is released in spite of keeping the flame going the customary amount of time, then either the flame isn't powerful enough to reach and heat the thermocouple bulb, the pilot flame or the bulb is out of alignment or the thermocouple is faulty.

If the flame is weak it indicates a blockage in the jet or the supply pipe.

Sep 08, 2017 | The Kitchen Appliances - Others

1 Answer

pilot lit will not stay lit check it and blew it all out with air .


Hi and welcome to FixYa. I am Kelly

A few things to do here.
1. Make sure the thermocouple probe is positioned directly inside the pilot flame.
2. Disconnect the thermocouple from the gas valve and clean the blunt end of the thermocouple AND the area in the gas valve that the thermocouple blunt end mates to. Any dirt, debris or corrosion in this area will cause the symptom that you describe
3. Worst case if you do not have a blue pilot flame you may have to remove the pilot orifice and clear the pin hole in the orifice.
4. If you have a push and hold type pilot lite gas button... press hard... and let go several times.
5. After all of the above the symptom is still present.... you will have to replace the thermocouple.
I read that you already did the burner tube cleaning.

Most of the time this symptom is caused by the thermocouple either being in the wrong position, a defective thermocouple or a dirty connection surface area where it mates to the gas valve.

Thanks for choosing FixYa,
Kelly

Jan 30, 2011 | Endless Summer Blue Rhino 235000...

1 Answer

pilot LIGHT KEEPS GOING OUT OUT


The pilot light jet may have got a little bit of dirt or grit in it which is preventing it from keeping alight. If the pilot light has only a weak flame, the whoosh of the main burner igniting can quite often blow out the pilot. Try probing the jet with a fine piece of wire to see it the blockage can be dislodged. You may have to unscrew the jet to clear it by blowing air through it. Make sure gas is turned off first before removing any parts.

The pilot light also has a thermocouple that allows gas to the pilot light while the flame is burning. If pilot flame goes out for any reason, it shuts the gas off to the pilot jet to prevent unburned gas collecting and causing a safety hazard. The thermocouple is bypassed by a switch during the initial ignition and once the thermocouple warms up after a minute or two of holding in the bypass switch, it should maintain the pilot. If, after cleaning, the pilot light keeps going out, it would seem that your thermocouple is faulty and needs to be replaced.

Oct 29, 2010 | Heating & Cooling

1 Answer

my reddy 30 heater will not stay lit after starting, I have held the switch down for longer than 30 sec, but it just want stay lit


The thermocouple is what tells the gas valve to supply or not supply gas. Several things can cause the thermocouple to malfuntion.
1. pilot light jet is clogged and will not allow the pilot light to reach and heat the thermocouple. Repair by cleaning the pilot light jet out.
2. corrosion on the thermocouple which will also not allow the flame from the pilot to heat the thermocouple properly. Repair by sanding the thermocouple lightly with sandpaper
3. Thermocouple is bad and needs replacement.

Mar 25, 2010 | 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

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