If the pilot won’t stay lit, the problem is usually related to the thermocouple, a heat-sensitive electrode that signals the gas valve to stay open when the pilot is on.
Make sure the propane tank is full, properly connected to the fire pit gas supply hose, and that the propane tank valve is turned on. … If you do not smell any gas, push in the gas valve knob until the air is fully purged from the gas supply hose. Check for obstructions around the igniter cage and burner ring.
Thereof, How do you fix a broken thermocouple?
A burned out or broken thermocouple should be replaced. To replace a thermocouple: Step 1: Unscrew the copper lead and the connection nut inside the threaded connection to the gas line. Step 2: Under the mounting bracket at the thermocouple tube, unscrew the bracket nut that holds the tube in place.
Also to know is, When should a thermocouple be replaced? In effect, new thermocouples were installed into contaminated tubes, causing the degradation of the sensors and generating greater than a 100°F shift in accuracy. In this scenario, thermocouple life, which should have been close to one year, was shortened to within a week.
Subsequently, question is, Why is my gas fire pit not lighting? Make sure the propane tank is full, properly connected to the fire pit gas supply hose, and that the propane tank valve is turned on. Push in the spark igniter switch to check that is making a clicking noise. Air may need to be purged from the gas supply hose. …
Also, Can you fix a thermocouple?
When a thermocouple fails, the pilot light won’t stay lighted. A burned out or broken thermocouple should be replaced. To replace a thermocouple: Step 1: Unscrew the copper lead and the connection nut inside the threaded connection to the gas line.
What are the symptoms of a bad thermocouple?
If you can’t get the flame to light at all, and you’re sure the gas is on, there’s probably an obstruction in the pilot tube. If the flame lights and goes out when you release the gas control knob after holding it in for the recommended 20 to 30 seconds, that’s the sign of a thermocouple malfunction.
How do you replace a thermocouple?
– Turn off the gas supply. …
– Unfasten the three nuts that hold the thermocouple and the two gas tubes to the valve. …
– Detach the thermocouple from the burner. …
– Install the new one the same way that you removed the old one. …
– Turn the gas back on and follow the lighting instructions on the water heater.
How do you test a thermocouple?
Can you bypass the thermocouple?
Bypassing the thermocouple would make it no more dangerous than any propane grill. It’s not going to make it explode. The only thing it would prevent is losing a tank of propane into the atmosphere if the flame happened to go out because the valve wouldnt close.
How often do thermocouples need to be replaced?
Thermocouples can last several years, but they don’t typically last as long as the furnace itself. If the pilot remains lit, but the main furnace doesn’t stay lit, it’s time to replace the thermocouple. Replacement thermocouples are in stock at most hardware and home improvement stores.
How much should a plumber charge to replace a thermocouple?
Thermocouple – $20 to $150 The thermocouple is an apparatus that senses whether the pilot light is lit and triggers the gas control valve. Repairs typically cost about $150 to have it done professionally, though a new thermocouple itself only costs about $20 on average.
Will pilot stay lit if thermocouple is bad?
The job of the thermocouple is to keep the pilot lit. It does this by sending a tiny electric current to a sensor on the gas valve signaling the valve to stay open. … Nothing lasts forever, and when the thermocouple wears out, the pilot won’t stay lit and your appliance won’t work.
How do you fix a gas fireplace that won’t stay lit?
Can you jump out a thermocouple?
There is no way of bypassing the thermo coupler. The only thing you can try is to jump the bulb with a wire, that is the only thing that I think would work. … I have sanded the thermocouple bulb with sandpaper until it is shiney – still no luck.
Why is my gas fire not lighting?
If gas is coming out of the pilot, but it still won’t light, the spark igniter could be the problem. Alleyne says to look for and clear out any debris between the igniter and thermocouple. Pro Tip: If the pilot is lighting, but not staying lit, it indicates that the thermocouple is worn out, Worthen says.
How do you light a gas fire pit with a key?
– Press in the piezoelectric starter button; it’s usually red, and it’s next to the control knob. …
– Push in the control knob and turn it to the “On” position while you keep the spark generator button depressed. …
– Continue depressing the knob for 30 to 45 seconds to give the thermocouple time to warm up.
Do thermocouples wear out?
Thermocouples wear out and are replaceable, but you should conduct a few simple tests before doing that, because your gas pilot may be going out for another reason.
Don’t forget to share this post 💖
References and Further Readings :