[Quick Answer]: Why will my hot water heater not light?

If you have a natural or propane gas water heater, chances are the pilot has gone out. … If the pilot doesn’t relight, if it goes out right after lighting or if it goes out repeatedly, by far the most common cause is a bad thermocouple.

What do you do if your pilot light won’t light?

You need to turn the valve to the off position for at least three minutes. Once you have had the valve at off for a few minutes, switch it over to pilot setting. You will need a match that is lit. Hold it to the pilot opening and push the reset button on your pilot control.

Why does my hot water heater igniter not ignite?

If the igniter fails, the burner will not light. To determine if the igniter is defective, first make sure the igniter is getting voltage. If the igniter is getting voltage, but it doesn’t glow, this indicates that the igniter is defective and should be replaced.

Can you light a water heater manually?

Lighting the Pilot Light on a Manual Hot Water Heater

If your hot water heater is a manual, grab a long lighter. … Now, hold the pilot dial down while you light the burner. You’re going to hold the pilot button down for at least 30 seconds before you release it.

How do you clean a thermocouple on a water heater?

Clean the thermocouple – using the emery cloth sandpaper, sand the ends of the thermocouple and then give it a finishing touch with the lint-free cloth. Hopefully, you can get to the ends of the thermocouple without having to detach it from the assembly, but you may have to do that.

Why would pilot light go out?

Some of the possible serious reasons for pilot lights to go out include loose or broken gas valves, thermocouples or heat exchangers, faulty venting, low gas pressure, or high winds. If you believe there is a serious problem, don’t hesitate to contact a professional.

Why is my gas heater not igniting?

One of the most common reasons for your gas heater not igniting or stopped working is because its thermostat is either off or not working properly. Therefore, make sure you check the thermostat, and if it is off, then turn it on while setting it on heat mode (5 degrees above your room temperature, at least).

How do you reset the igniter on a water heater?

How to reset gas water tank pilot light – YouTube

How do you fix a clogged pilot on a water heater?

How to Fix a Plugged Pilot Hole on a Water Heater

  1. Remove the cover plate at the bottom of the water heater. …
  2. Turn the gas control to the “Off” position. …
  3. Locate the pilot tube. …
  4. Clean the pilot hole by brushing it with a stiff wire brush. …
  5. Screw the bracket back onto the valve and turn on the gas.

How do you test a water heater Ignitor?

RV water heater ignitor testing on the bench. – YouTube

How do you light a water heater without igniter?

Lighting with No Igniter

  1. Take a long lighter to reach the pilot. …
  2. Remove the plate attached below the dial box. …
  3. Switch Pilot to OFF.
  4. Wait for a while, – 5-10 minutes until there won’t be any gas.
  5. Change the temperature to LOW, and switch to Pilot.
  6. Push ON/OFF dial down, and simultaneously use the lighter.

How do you light a gas hot water heater with an igniter?

How to Relight a Gas Water Heater Pilot Light | Roto-Rooter – YouTube

How much does it cost to replace a thermocouple on a water heater?

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.

How do I know if my thermocouple is bad on my water heater?

If the pilot lights but the flame goes out as soon as you release the button after holding it for 60 seconds, then the thermocouple is bad. It’s possible to replace the thermocouple without removing the burner assembly, and many repair people do this.

How long does a water heater thermocouple last?

Thermocouples can last up to 10 years if properly installed and maintained, while furnaces can last 15-20 years, although either may wear out sooner in multifamily units.

Can you bypass a water heater 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 check my pilot light?

How to Tell If the Pilot Light Is Out

  1. Locate the front cover panel on your furnace. It should be a little door that’s easily visible. …
  2. If your pilot light is on, it should be easy to see – your eyes will be drawn to the little flame.
  3. If you don’t see a flame, your pilot light is out.
  4. If there is a flame, check the color.

Does gas turn off when pilot goes out?

This is because all modern gas appliances with pilot lights have a fail-safe device that closes off the gas to the appliance in the case when the pilot may go out. … If the pilot light goes out for any reason, the current stops, the valve closes, thus preventing any gas from leaking.

Where is the ignition sensor?

Flame Sensor Cleaning – Furnace Cycling On and Off – YouTube

Does the pilot light stay on in a gas water heater?

Gas and propane fueled water heaters use a small flame to ignite the burner. This small flame is called a pilot light and it stays lit at all times. … But once the pilot light is relit, the water heater is able to ignite the gas burner and can begin to heat the water again.

Where is my flame sensor?

A furnace flame sensor is a very basic part of your furnace. It’s located on the burner assembly and is just a thin metallic rod. It’s usually bent, and it sits just in front of the pilot flame inside the furnace.

Is there a reset button on a gas hot water heater?

A water heater reset button, usually red, is located in the center of the limit switch just above the water heater thermostat. The water heater limit switch is a safety device that will shut the power down to the water heater if something malfunctions and the water gets to hot.

Do hot water heaters have a reset button?

Somewhere on your electric water heater, you’ll find a reset button. It’s usually red and often located near the thermostat. It may also be hidden behind a removable metal panel on the unit—and then behind some insulation. … If your water heater now has power, you’re all set.

What trips the reset button on a hot water heater?

If a water heater reset button keeps tripping, the first area to inspect is the thermostat. With an electric water heater, you have two thermostats, one upper thermostat and one lower one. … When this happens, the thermostat may never turn off the heating element, which causes the reset button to trip.

How do you clean a clogged pilot light?

Use your pliers or wrench to remove the pilot light and thermocouple from the bracket. Using the wire brush, brush away the carbon buildup and soot from both components. For hard to reach areas and stubborn buildup, use the metal file. Wipe away dust with a soft cloth or burst of compressed air.

Should the water heater be on pilot or on?

You should set the water heater to “pilot”. If, however, your water heater is also the boiler for your central heating, then you’ll want to leave the heating running as normal so that your house doesn’t get damp as a result of cold and condensation.

How do you know if your ignitor is bad?

Test The Ignitor With A Multimeter

Set a multimeter to the lowest possible resistance test and place the probes onto tips of the plug for the ignitor. If the multimeter shows infinity or stays at zero, the ignitor no longer works and must be replaced.

Can you manually light a water heater with electronic pilot?

* Caution: Most modern water heaters no longer use standing pilots. They use electronic ignition to ignite the gas. Do not attempt to manually light an electronic ignition system. … If the pilot light will not re-light, the problem could be a clogged pilot line or orifice, or gas is not reaching the water heater.

How long should a water heater last?

It would be nice to know when the time is right to replace your water before it springs a leak and causes an inconvenience or worse yet, damage to your home. Typically a residential hot water heater lasts between 6 and 13 years. Beyond 12 years, you are on borrowed time!

Do electric hot water heaters have a pilot light?

There’s no gas or pilot light involved in electric water heaters. If the power to your electric water heater is off, you may have an electrical issue requiring professional assistance. … You will need to reignite a gas water heater that does not light automatically.

Can I replace a thermocouple myself?

1 cause of pilot lights that won’t stay lit is a worn-out thermocouple. It’s easy to replace and a new one costs $5 to $10. … Then detach the thermocouple from the burner and take it with you to the home center or hardware store to ensure you buy the right replacement.

What is the most common problem with water heaters?

Water leaks are perhaps the most common type of water heater issue you’ll face. Any water heater will start to leak eventually, as by nature water will eventually corrode your tank and create microscopic cracks or fractures. However, this isn’t always a sign that your tank is what’s leaking.

How much is a brand new water heater?

New Hot Water Heater Installation Prices. New hot water heater installation costs range from as low as $550 to $10,000 or more, including the unit and labor. Most standard electric and gas water heater units cost $400 to $1,600. However, they can range anywhere from $250 to $6,000, depending on the type.

How do I know if I need a new 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.

Where is a thermocouple located?

Your furnace’s thermocouple is usually located right in the flame of the furnace’s pilot light. Its copper tubing makes it easy to spot. The thermocouple is made up of a tube, a bracket, and wires.

How do you check a thermocouple?

How to test a thermocouple with a meter (grounded &amp, ungrounded)

What causes a gas water heater pilot light to go out?

Thermocouple Issues

If it senses that your water heater pilot light keeps going out, the thermocouple will shift off the gas supply to the heater. Over time, thermocouples can malfunction, accumulate dust buildup, or the device can get bent away from the pilot light’s flame.

Will cleaning thermocouple help?

Yes, you can clean a thermocouple, but the task must be done with a light touch. Remove the thermocouple from the process assembly, using a steel wool or emery cloth, lightly clean the tip removing any build up. Cleaning a thermocouple is not a fix for an issue, such as inaccurate readings.

What do thermocouples do?

Thermocouples are sensors used to measure temperature. It is a device used inside a gas furnace in Kansas, to assist the pilot light in keeping your furnace running and safe. It works rather like a fail-safe to keep unburned gas from accumulating and burning, exploding or causing another type of health risk.

How do you troubleshoot a thermocouple?

Importantly, always make sure the tip of the thermocouple is directly in the pilot flame. If the tip is in the flame, you have held the nob on the gas valve down for longer than a minute, the pilot flame is strong and steady, and the pilot still does not stay lit, then you likely have a problem with the gas valve.

How do you replace a thermocouple?

No Hot Water – How to Replace a Thermocouple – YouTube

Can you use water without water heater?

Yes, with a few caveats. Is there a shutoff valve present on the cold water line to the water heater? If so, just turn it off. But be aware that if water passes through any fixture in the house you could end up with water spewing out of the hot water line where the water heater goes (known as backfeeding).