How do you adjust the pilot light on a water heater?

Pilot adjustment may be necessary for proper main burner ignition of the water heater. The pilot adjustment screw is located on the gas valve, just “above” the pilot tube (See Figure 3). Remove the cap screw and find the actual adjustment screw behind it. Turn the screw in to decrease pilot flame, out to increase.

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Hereof, can a pilot light flame be adjusted?

Adjusting the Pilot Flame If the pilot flame is too small, you may be able to make it larger by turning the pilot adjustment screw on the valve control counterclockwise with a screwdriver to open it. The cause of a weak flame may also be an obstruction in the pilot tube.

why does the pilot light on a water heater? Some of the most common reasons that water heater pilot lights go out include: A faulty thermocouple. Your thermocouple is responsible for sensing when your pilot light is lit. Over time, thermocouples can begin to malfunction and shut off the gas supply to the pilot light even if it's burning properly.

Keeping this in consideration, is my pilot light too high?

A: There is a way to control the height of the pilot light flame. The pilot flame should touch the thermocouple at a specific level. If the flame is blue and weak, and barely reaches the thermocouple, it needs to be stronger. If it extends well above the thermocouple, it's too strong.

How do I fix my pilot light?

Hold lighted match to pilot opening while you push reset button on pilot control panel. Keep this button depressed until pilot flame burns brightly, then set valve to on position. Step 4: If pilot flame won't stay lit, opening may be clogged. Turn gas valve off, and clean opening with piece of fine wire.

Related Question Answers

How do you know if you have 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.

What color should the pilot light flame be?

blue

What causes a weak pilot light?

Some of the reasons your pilot light keeps going out include: High winds or downdraft. A poor pilot flame - low gas pressure or blocked orifice. A flame that is set too small.

How do you adjust a thermocouple?

To adjust the thermocouple, you must tighten the thermocouple nut with a wrench. Take care not to apply too much pressure to the nut -- just tighten it slightly. Then try lighting the pilot. If the pilot won't stay lit, replace the thermocouple with a new one of the same type.

What does a thermocouple look like?

The thermocouple looks like a piece of metal tubing smaller than a soda straw. To find it, first locate the gas control box. This is the box that the main gas line enters, where you turn the gas on in the furnace. The other end of the thermocouple sits in the flame of the pilot light.

How do you test a thermocouple?

Steps

1. Locate the pilot light controls on the gas valve.
2. Turn the pilot light on for 30 seconds.
3. Release the button to see if the pilot light goes out.
4. Turn off the gas supply to test the thermocouple again.
5. Count to 20 and wait for the pilot light to go out.
6. Listen for clicking near the gas valve.

Should the pilot light always be on in a gas furnace?

If you have an older gas furnace, your heating unit relies on a little blue flame known as a pilot light to ensure ignition of the burners. Water heaters, gas fireplaces and old gas stoves also often have similar pilot lights. Since the pilot light needs to remain active, your furnace is always consuming some gas.

Should a thermocouple be in the flame?

Typically the thermocouple sensor is mounted right in the flame of the pilot light on gas fired heating equipment. But not all of these systems use a thermocouple. Some gas fired heating equipment relies on an electronic ignition to ignite the flame. Those devices generally will not use a thermocouple.

Can a pilot light cause carbon monoxide?

Carbon monoxide is a colorless, odorless gas produced during burning fuel. It doesn't leak from a pilot light that's gone out, but if the light keeps going out even after you relight the pilot, it can indicate that you have other problems.

Can you clean a thermocouple?

If the Thermocouple is faulty it will cause the unit to shut down. How to clean? Remove Thermocouple from pilot assembly, using steel wool or emery cloth to lightly clean the tip removing any soot or build up that might have accorded due to an improper pilot flame.

How do I check my pilot light?

The pilot gas line is a small metal tube below the burner assembly and distinctive by the slight upturn at the end. It will be apparent, if the pilot is lit, by the small blue flame burning at the end. If you do not see a small blue flame burning, the pilot light is out.

How do you stop a fire pilot light?

How to Adjust the Pilot Light Flame on a Gas Furnace

1. Locate the access plate on the front of your furnace, and unscrew the screws that are connecting the access plate to your furnace.
2. Observe the flame.
3. Turn that screw counter-clockwise, and the flame should grow.
4. Rotate the screw on the pilot light clockwise, and the size of the flame will decrease.

How much does it cost to replace a thermocouple?

Thermocouple Replacement - $20-$150 Calling a professional plumber to install a new thermocouple should only be up to $150. If you do the work yourself, you will only pay the price of the part which is about $20.

How do you clean a thermocouple on a water heater?

Turn off the lever handle gas valve to the water heater and turn the knob on the top of the temperature control valve to “Off.” Use open-end wrenches to unscrew the nuts that connect the burner gas line, the pilot gas line and the thermocouple. Pull the gas tubes and thermocouple down out of the gas valve.

Do I need to turn off hot water heater if I turn off water?

If the element gets turned on without water surrounding it, it gets too hot and burns up. In rare circumstances, you could also get a buildup of dangerous pressure if the relief valve were to fail. So, yes, please turn off your water heater when you turn off your water main.

How long does a thermocouple last?

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.

Why is my gas heater not lighting?

Often times the reason air does not get to your furnace's igniter is because it is restricted. The main reason for this air restriction is usually traced back to dirty air filters. So check them if your gas furnace fails to ignite when you turn the system on.

What causes a thermocouple to fail?

Changes in temperature can cause regular expansion and contraction in metal, which will cause thermocouples to weaken over time. After enough time, metal fatigue can cause a thermocouple to break. If thermocouples start to give out unusual readings, it may be suffering from metal fatigue.