Simply so, how does a pilotless water heater workIgnition. A spark produced from an electrical current ignites the gas in a pilotless water heater. The electricity for the spark is from a wall outlet or from an internal generator utilizing the movement of the water through the pipes to produce electricity.

How does a water heater igniter work?
The water heater uses the piezo igniter to light the main gas burner, and when it is pressed down, it releases the electric spark. The spark gap is factory set (0.125") and should be maintained. When troubleshooting lighting problems, it is recommended to test it first.
How do you light a electronic ignition water heater?
Lighting A Hot Water Heater Pilot Light Set the temperature control. to its lowest setting. Set the on-off control. to the pilot setting. Press the hot water heater. pilot button down and. hold it. While looking through the the sight glass slowly press the spark generator until you here it click. You should see a spark.
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.
How do you turn on a water heater Ignitor?
How to Light a Water Heater Pilot Light Open the door/cover over the pilot light access. ... Use a flashlight or a headlamp to find the burner inside. ... Turn the gas knob to “Pilot,” press and hold it down. ... While still holding the gas down, light that pilot. ... When the flame ignites, continue to hold the gas knob or button down for a full minute. More items... • Jan 18, 2018
Can I manually light my gas water heater?
Turn the water temperature dial to Low and the On/Off/Pilot dial to Pilot. Push the On/Off/Pilot dial downward with one hand while lighting the barbecue lighter with the other. Quickly hold the barbecue lighter over the end of the pipe by the burner. The flame should light instantly. Aug 14, 2018
Why does my water heater not ignite?
The water heater pilot light is a small flame that ignites the gas burner on your water heater. ... 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.
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. Sep 25, 2019
How do you relight an automatic pilot light?
How to Relight an Automatic Pilot Light Set the thermostat on your furnace to its lowest setting. ... Remove the access panel covering the gas control knob. ... Turn the gas control knob to the OFF position. ... Turn the gas control knob or knobs to the ON position. ... Turn the electrical power to the furnace back on.
Do electric 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. Once you find the button, push and release it. Nov 14, 2019
Where is the pilot light on an electric water heater?
It's usually right on the panel. Turn and hold the knob to “Pilot” and push the ignitor. You should hear it click, and probably also a “whooshing” sound. Check in that gap, and you should see the light on. Apr 2, 2020
What would cause the pilot light to go out on a water heater?
If you have a faulty thermocouple is the most common reason that your pilot light is malfunctioning. Over time your water heater will collect dirt, dust and other kinds of debris. Build up on your thermocouple can cause a malfunction. This is and easy fix, simply let it cool down and brush off the dirt or debris. Sep 23, 2019
How do I light the pilot light on my electric water heater?
If your model has a separate button for pilot mode, press and hold it down. While holding the gas knob or button down, light the pilot. Depending on the model of water heater you have, you may have a red or black igniting button, or you may need to light it manually with a long lighter. Jan 28, 2020
How do you light a hot water heater without an igniter?
Lighting with No Igniter Take a long lighter to reach the pilot. ... Remove the plate attached below the dial box. ... Switch Pilot to OFF. Wait for a while, – 5-10 minutes until there won't be any gas. Change the temperature to LOW, and switch to Pilot. Push ON/OFF dial down, and simultaneously use the lighter. More items... • Dec 3, 2020
Can hot water heaters be repaired?
A leaky water heater could be the result of a faulty T&P (temperature and pressure) relief valve, or a leak from a nearby plumbing connection or even the tank itself. A T&P valve and plumbing leaks can be repaired, but a leaky water heater tank cannot; the unit must be replaced as soon as possible.
Do gas water heaters require electricity?
Gas water heaters don't use electricity as a fuel, and many homeowners assume they will work in a power outage. ... Even gas water heaters with electric pilot lights can continue to work as they don't necessarily rely on mains electricity.
Is it dangerous if pilot light goes out on water heater?
Is it Dangerous if the Water Heater's Pilot Light Goes Out? In most cases, it isn't dangerous when the water heater pilot light is extinguished. This is because modern gas-fueled water heaters feature valves that automatically close the supply of gas when the pilot light goes out.
Does the gas company light pilot lights?
On some gas-powered appliances -- such as gas ranges, water heaters, boilers and gas fireplaces -- the pilot light works to ignite the main flame when the gas is switched on to the burner by the regulating valve. ... To turn off the valve, rotate it clockwise until the valve stops turning.
Who do you call for water heater problems?
Have another water heater problem? Then you'll need to call a plumber. A list of the most common water heater problems that require a plumber include: Strange noises coming from your water heater (i.e. whistling noises) Nov 30, 2016
How long should gas water heater last?
8-12 years Average Lifespan With regular inspection, draining, and flushing, you can expect a gas water heater to last anywhere from 8-12 years and an electric water heater to last anywhere from 10-15 years.
How much does it cost to replace 40 gallon water heater?
The cost to install a new water heater ranges from $400 to $900 for a 40 to 50-gallon tank, and between $1,470 and $2,510 for a tankless. Also, most plumbers will charge between $250 and $500 to take the old water heater out and properly dispose of it.
How much does it cost to fix 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. Aug 25, 2020
What causes 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. Oct 13, 2015
Can you bypass a thermocouple?
So if you want to bypass the thermocouple you have to get rid of the spring mechanism. You can bypass the spring mechanism by simply using a screwdriver to pop out the little e-clip and take the valve off and problem solved. Pull off the spring and throw that in the trash. Sep 23, 2020
Can I relight the pilot light by myself?
Pilot lights were once standard on all gas furnaces, but newer systems don't always contain pilot light ignition systems. Instead, some newer furnaces use electronic ignition systems. ... Often, homeowners can relight the pilot themselves. Mar 2, 2017
What do you do if your pilot light won't light?
Check the Thermocouple If your pilot light won't stay alight, it might be the thermocouple. Sometimes dust buildup collects on the thermocouple and blocks the sensor. Try cleaning the thermocouple and then relighting the pilot light. If it continues to go out, the thermocouple might need to be replaced. Jan 27, 2020
Should the pilot light always be on in a gas heater?
Since the pilot light needs to remain active, your furnace is always consuming some gas. It's not a lot—usually just a few therms of gas a month—but that obviously adds up over time. There is a safety issue as well. Pilot lights can develop problems that cause them to burn inefficiently. Feb 27, 2019
Why does my hot water heater keep tripping the reset button?
Reason #1: Bad thermostat The thermostat's job is to monitor the temperature of the water in the tank and shut off the heating element when it reaches your set temperature. ... This allows the element to keep heating the water until the reset button trips. If this is the problem, you'll need to replace the thermostat. Jun 7, 2016
When should I reset my water heater?
Why Do I Need to Reset? A faulty thermostat: This would prevent the unit from producing hot water, triggering the circuit to trip. Electrical issues: Sometimes there's a loose or faulty wire which prevents electricity from reaching the heater. More items... • Oct 2, 2020
Will a bad water heater element trip a breaker?
On an electric water heater, only one heating element is on at a time. ... However, when a thermostat goes bad, it can create a problem where both heating elements run at the same time. This draws more electricity than the circuit can handle, causing the circuit breaker to trip. Mar 14, 2016
Will a pilot light stay lit with a bad thermocouple?
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. Sep 7, 2018
Does the burner on a water heater stay on all the time?
The pilot should always be burning on your water heater. ... In this manner, how long does water heater burner stay on? Water heaters run an average of three hours a day, but the difference in total operation time can range from one or two hours for new tankless heaters to five or more for older standby tanks. Mar 12, 2020
Will gas leak if pilot light is off?
A pilot light is a small flame that is built into your gas heating appliances, such as a furnace or water heater. ... If the pilot light goes out for any reason, the current stops, the valve closes, thus preventing any gas from leaking. Dec 23, 2019
How do you check an electric hot water heater?
Remove the access panel, insulation, and plastic safety guard from each heating element on the water heater. Do not touch any wires or electrical terminals. Test the wires to confirm the power is off, using a non-contact voltage tester. Check the heat setting on both thermostats: They should be at the same temperature. Dec 11, 2020
How do you troubleshoot a gas water heater?
Go to the article 'Gas Water Heater Thermocouple Issues' for information on this common repair. The other less common problem would be the gas valve. A bad gas valve will not allow any gas to go to the burner or pilot light. If the pilot light lights and then shuts off it is not the gas valve. Nov 15, 2019
How do you replace a water heater sensor?
How to Replace the Thermocouple on an Electronic Ignition Water Heater Remove Burner Assembly Manifold Cover. ... Remove the Burner Assembly. ... Remove the Cover Plate Gasket. ... Remove the Thermocouple. ... Install a New Thermocouple. ... Reinstall the Burner Unit. May 22, 2020
Why won't my pilot light stay lit on my hot water tank?
Thermostatic Control or Gas Valve If your gas water heater doesn't stay lit, you may have a defective control thermostat. ... The gas supply to the pilot assembly is controlled by this valve. If the pilot light won't stay lit and the thermocouple is okay, then the thermostatic control valve may be defective.
How long does it take for a water heater to heat up?
between 30 and 40 minutes The average gas heater takes between 30 and 40 minutes to fully heat up the water in its tank. The average electric heater takes about twice as long as the average gas heater to fully heat up the water in its tank, so you can expect it to take between an hour and an hour and 20 minutes to heat up. Aug 12, 2016
What is the most common problem with water heaters?
The most common and annoying hot water heater problem. It may be caused by a broken drain valve, too much pressure build up in the tank, corrosion, and rust, or condensation builds up. If you notice a leak, it's best to call a professional at Einstein Plumbing and Heating for immediate help. Mar 17, 2019
Can you change water heater element without draining tank?
It is possible to change your water heater's heating element without draining your tank.
Does a plumber or electrician install a hot water heater?
A properly certified plumber is trained to handle almost any water heater problems including electrical wiring, piping, anode rods and gas lines. However, certain problems require the electrician, Call an electrician if, Water heater trips the circuit breaker. May 4, 2019
Is a gas water heater better than electric?
Gas water heaters tend to heat up more quickly. Because of its combustion, gas produces heat more quickly than an electric heating element. ... FHR signifies how much hot water the heater can deliver in the first hour when the water in the tank is fully heated. The more efficient the water heater, the higher the FHR.
Does a gas heater work without electricity?
A gas furnace uses the burning of natural gas to create the heat that then goes through the ventilation system. It's like an old-fashioned stove this way: no need for electric power, just plain old heat from consuming another power source. ... If your gas furnace doesn't have electrical power, it won't run. Jan 9, 2017
Is it cheaper to run a gas or electric water heater?
Depending on your local utility costs, gas water heaters are typically cheaper to operate than electric. They also cost more upfront than an electric. However, based on energy savings, gas heaters generally make up the difference in price in about one year. Cost: $300 to $600 for gas; $250 to $500 for electric.
What happens to water heater when water is shut off?
The water heater will still turn on and off to maintain the water temperature inside of the tank. ... Realistically there is no danger to having the tank on with the water off. Especially since the tank works off water pressure to supply hot water. The tank pressure will be equal to your water pressure. Jan 8, 2014
Can I leave my water heater on pilot?
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. ... Going away for 3 weeks the water is going to cool off even if let on.
Should I turn off gas water heater if water is off?
WAPT spoke to four plumbing companies that all said that homeowners should turn off the water heater if the water is not running for more than 24 hours. Residents can go to the breaker box in the home and throw the breaker to the “off” position for the water heater. Mar 7, 2017
Can I turn my gas back on myself?
Once the valve is turned off, do not turn it back on by yourself. It must be turned on by a gas company technician. The gas company will likely perform a pressure test on the system and relight all pilot lights in the house as part of turning the gas back on. Oct 21, 2019
Is the pilot light supposed to stay on?
Leaving the gas on keeps this compound moving out of the tubes. Keeping the pilot light on will also keep moisture out of the unit and in turn, help prevent corrosion. ... As you can see, it's probably best in most cases to extinguish the pilot light in your gas fireplace during the months when you don't need heat.
Who do I call when my pilot light goes out?
If it goes out, follow your manufacturer's instructions and determine whether relighting it is safe. If relighting is not safe, or if your pilot light keeps going out, call for help from a trained technician. For any questions on your heating equipment, contact SOS Xtreme Comfort. Oct 5, 2015
Can a water heater explode?
High internal temperatures and pressure can contribute to a water heater explosion. Units are equipped with safety mechanisms to prevent levels from becoming excessive, but when malfunctions occur, an explosion may result. ... Gas leaks also create the potential for a hot water heater explosion and the risk of a fire.
How much should it cost to have a water heater installed?
Installing a water heater costs $806 and $1,558, or an average of $1,173, including the unit and labor. Tankless heaters cost about $1,000 to $3,000. Water heaters cost $300 to $2,000+ for the unit alone while plumber labor runs $45 to $150 per hour. Apr 16, 2020
Do plumbers work on water heaters?
When it comes to hot water coming out of your faucets and showers among other systems, plumbers are the best professionals to call for the job. As it pertains to the problems that hinder a water heater in its ability to do its job, there is more than one problem that may arise. Jun 15, 2020