If you have the wrong pilot burner replace it with the correct one. Once there is a need for heating (or call from a thermostat), a gas control valve releases the gas into the main burner, and the pilot light ignites the gas. 3. Scott has a J.D. If you have a malfunctioning thermocouple, it can shut OFF the pilot light even when it is supposed to be ON. Video of the Day A yellow flame means that there is no sufficient air flow, that the gas combustion is not complete or the pilot tube is dirty. Otherwise, if the pilot light is not functioning correctly, the unit won’t turn ON, and you won't have hot water. Soot and/or carbon deposits on the pilot light. The condensate, in this extreme case, is running down the flue tube and is dripping on the burner assembly, which results in the pilot outage. While older pilots burned constantly, wasting gas, automatic pilot lights come on long enough to ignite the gas supply and then shut off. Clean out any dust or debris before attempting to light the … When trying to light the heater be sure to put the gas valve on the water heater in the 'Pilot' position and hold down on the pilot button. Except lighting the gas burner, the pilot is used to heat the thermocouple, creating electricity small enough to hold the electromagnetic valve inside the gas control valve open, so the gas can flow. The most common reason for this problem is because the pilot light is not on. What do you do? honeywell water heater pilot light won't stay lit. Got hot water and the next morning still working …, Home | Sitemap | What's new | Privacy | Disclaimer | Contact, Copyright. The gas control valve should be creating at least 10 millivolts. Most water heaters operate with a thermocouple. The gas valve and its inner elements are faulty - replace the whole gas control valve. If it is yellow, it needs an adjustment. It may take a minute or so before the heating … Wait five to 10 minutes for any residual gas to clear out of the furnace. Every gas appliance is equipped with similar safety devices, prevent gas leaking inside the house. Check out this article to learn more about condensation and its effect on the water heater. Turn the gas control knob to the OFF position. Shut off all electrical power to the furnace, either by using the OFF switch on the furnace or by flipping off the circuit breaker in your house. If the pilot cannot be cleaned, replace it. Dirty Pilot Tube. Dirt and debris can collect in the pilot tube, causing the flow of gas to be blocked. Most are problems with an easy fix. The Angie’s List Answers forum ran from 2010 to 2020 and provided a trusted space for homeowners to ask home improvement questions and receive answers directly from Pros and other users. Tank-type gas water heaters use a pilot light to ignite the gas burner when the water in the tank needs to be heated. Tweet I heard a scream from my wife in the shower, “No hot water! If you have a Honeywell gas valve on your water heater, and you find you have no hot water, this may be the answer to your problem and the easy fix. Lighting the pilot light when using the Honeywell, Rodgers-White, and Robertshaw gas control valves. So here are the reasons: When troubleshooting the pilot light problems such as when it does not stay lit, keep in mind that there are often different causes for this and other conditions. If there is a restriction in the fresh air delivery, find the reason and remove the obstructions. The water heater uses the piezo igniter to light the main gas burner, and when it is pressed down, it releases the electric spark. He has been freelancing since June 2009, and his articles have been published on eHow.com and Travels.com. If you smell gas at any point or if you are unable to get the furnace to light using this technique, stop working on your furnace and call a repair service. Once the thermocouple detects that the pilot light isn’t lit, it turns the gas off as a safety measure. However, in some cases, other issues can prevent the pilot light from being lit. Sometimes, carbon deposits can build up on the pilot and eventually create a restriction. Most gas fired water heaters use a standing pilot to ignite the main burner. Gas heaters, whether they warm up air or water in a home, rely on a pilot light to trigger the flame of the actual heater. If the gas pressure is too low, the flame can become too small. Gas Heater Pilot Light Troubleshooting. To do this, you must shut off the gas supply, effectively resetting the system and resetting the pilot. sites. Most of the time improper venting would cause the pilot outage on direct vent gas water heaters (DV). Open the valve on the gas line by turning the handle until it is parallel to the gas pipe. Services LLC Associates Program, an affiliate advertising program designed to Step 1: Unplug the Igniter Wire. When your furnace fails to ignite, the first place to look is the pilot light. Whenever the thermocouple detects an unlit pilot, it turns off the gas as a safety precaution. from Emory University and is a member of the Utah State Bar. 1. A pilot light is a small device that is designed to provide the flame and light the gas coming out of the gas valve and main burner. If there is no gas or gas pressure is too high or low, check with your utility company to see if there is any work on the system. The pilot ignites the water heater’s gas burner. If the pilot does not light, the water heater will not heat. Call a technician if you are unable to reset your automatic pilot light on your own. Check if the wire connection is tightened correctly. In fact, it is really not a matter of "relighting" the pilot, but rather of resetting the pilot light. If you don’t see a spark at all when you are trying to light your pilot it may be that you are not looking in at the right angle. Hunker may earn compensation through affiliate links in this story. Did you know that by looking at the pilot flame you can say is it working as it should, or not? If the pilot cannot be cleaned, replace it. Turn the gas OFF to the water heater and press the piezo igniter. Faulty piezo igniter. Inspect the burner area with a flashlight. The air present in gas line could prevent the pilot light from lighting. If the water heater is installed in an attic, an excessive heat (above 250 F) could be another reason. Return to Content. My first thought was that the water heater pilot light went out, based on my past experience. Down-draft from the ceiling fan, draft at the bottom of the unit, or high winds are also common reasons when the pilot would go out. I have a Master Plumber Reliance 501 Gas hot water heater. The Pilot Light on My Water Heater is Lit but the Burner Does Not Light. Set the thermostat on your furnace to its lowest setting. It is a temperature setting. Verify the pilot remains on when you release the manual button. This was 10pm two days ago. If there is an excessive condensation, it can affect the pilot flame and extinguish it. The spark gap is factory set (0.125") and should be maintained. provide a means for us to earn fees by linking to Amazon.com and affiliated 2. Review lighting instruction. Check with the utility company about this problem. If that is the case, turn them both to the OFF position. Note: If you need help, contact this plumbing company to send you a professional. Some elements you can clean, but if there is dirt in the incoming gas line, you should notify your utility distributor and check with the gas technician about installing the dirt trap in the gas line. Pilot will light but no burner. Make sure the electrode is not broken, and replace it if it is. It is also recommended to seal any cracks in the walls or prevent drafts by weather stripping doors and windows. 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