Why does my pilot light keep going out with a new thermocouple?
A furnace pilot light won’t stay lit after replacing the thermocouple because the pilot burner is unclean or the gas valve has a bad magnet. It’s recommended to clean the pilot burner using a wide bristled brush to remove debris. If the gas valve has gone, it’s best to call a specialist to replace the gas valve.
Why is my new thermocouple not working?
If your water heater pilot won’t stay lit even after replacing the thermocouple, you most likely have a faulty gas control valve. It is a sign that the valve is failing to open and allow gas to flow to the pilot. You could also be dealing with a tripped or faulty thermal switch.
Why does my pilot light keep going out on my propane heater?
If the thermocouple is too far from the flame, this can cause the pilot to go out and shut down the propane heater; you can fix this easily by moving the thermocouple closer to the flame. The thermocouple could also be worn out, in which case it needs to be replaced.
What would cause a pilot light to not stay lit?
The Buildup of Dirt or Debris Around The Pilot Light – Over the years it’s easy for dust, debris, and dirt to build up on the inside of the intake valve where the pilot light resides. This makes it difficult for the flame to breath and as a result causes the pilot light to go out suddenly.
How do you reset a thermal switch?
Press the small reset button in the center of the thermal switch. If it’s tripped, you may be able to hear it click. Even if you do not hear the thermal switch click, try lighting the pilot using the instructions on the water heater’s label. If the Status Light now begins to flash, the thermal switch probably tripped.
Why does the flame keep going out on my furnace?
Your furnace has a limit switch that keeps it from running if the heat exchanger is too hot. Dirty filters, closed or blocked vents and other blockages in airflow are common causes of an overheated furnace. A bad limit switch. The limit switch may be bad and need to be replaced.
When I release the pilot button the flame goes out?
If you’re able to light the pilot light, but it goes out when you release the control knob, the thermocouple probably needs replacing. The thermocouple is a safety device that shuts off gas flow if it senses the pilot light is out, but when damaged it loses its regulatory ability.
How do you troubleshoot a thermocouple?
Quote from the video:
Quote from Youtube video: If I take my wire and attach it to anywhere along the sheets of the probe. I attached to the sheath and I'm getting continuity this is a grounded thermocouple if this was an ungrounded thermocouple.
Can I bypass a thermocouple?
Realistically, you have just disabled the thermocouple, but you can also reach in and unclip it from its holding bracket where it meets the pilot light. In most cases it will be held on with a gravity clip, but some are held on with a screw that must be removed with a small screwdriver.
How do I make my pilot light stay lit?
How to Light Your Furnace’s Pilot
- Make sure the thermostat is in heat mode.
- Locate the pilot valve. …
- Always turn the valve knob to the off position and make sure to wait at least several minutes for any residual gas to clear away.
- Get your match ready. …
- Once the pilot stays lit, turn the pilot valve to the on position.
How do you clean a pilot orifice?
How to Clean the Orifice. Once the pilot tube is removed from the orifice, use a fine-grit sandpaper to clean off the tip of the orifice. This can remove any oxidation buildup or mineral deposits that have found their way to the crevices of the gas pilot orifice.
Where is the pilot light adjustment screw?
Quote from the video:
Quote from Youtube video: Now I will show you how to adjust the pilot flame the adjustment screw of the pilot flame is behind this cover we can press through this cover. And find the adjustment screw.
How do you adjust a thermocouple on a propane heater?
Adjusting the Thermocouple
Correcting the first condition is a simple process. Simply shut off the gas, reach under the burner and push or pull the probe to reposition it. If the thermocouple is faulty, remove it by unscrewing it from the burner and pulling it out. Reverse the procedure to install a new one.
What does the pilot screw adjust?
What does it do? A pilot air screw will be made of brass, gold in color, and will have a blunt tip compared to a pilot fuel screw. The pilot air screw meters air, so turning it clockwise/in will richen the fuel/air mix, while counter-clockwise/out will lean the fuel/air mix.
Can you adjust the pilot light on a furnace?
Adjusting the Flame
There is usually a small screw on the pilot valve body that will adjust the standing pilot flame. You may have to refer to the furnace manufacturer’s instructions to find the screw. Turn the screw as needed to adjust the flame throw.
How far should thermocouple be from pilot?
When working properly in most gas appliances, the pilot flame should hit the upper 1/2 to 3/8 of the thermocouple.
How high should pilot light be on gas furnace?
about 1/2 inch
Inspecting a Gas Furnace Pilot Light Flame
A natural gas flame should be a bright blue color with a small amount of yellow at the very tip. A propane flame will have more of a bluish-green flame with a tinge of yellow at the tip. The flame should strong enough to cover about 1/2 inch at the end of the thermocouple tip.
How do you adjust a gas pilot light?
How to Adjust the Pilot Light Flame on a Gas Furnace
- Turn that screw counter-clockwise, and the flame should grow. Do this if you believe your flame is too low.
- Rotate the screw on the pilot light clockwise, and the size of the flame will decrease. …
- Return the access place to the front of your gas furnace.
How do you relight a furnace pilot light?
Quote from the video:
Quote from Youtube video: First set the gas valve to the pilot. Position hold down the bypass button to let gas into the pilot. Keep holding the button and use a barbecue lighter to insert a flame over the pilot.
How do you fix a yellow pilot light?
If you notice that you pilot light is burning yellow instead of blue, contact Jerry Kelly. The issue can typically be fixed by cleaning out the air intake valve to the pilot light, which should only be done by a professional who knows how to access and repair the part.
