![]() If there is a restriction in the fresh air delivery, find the reason and remove the obstructions. 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. Most of the time, improper venting would cause the pilot outage on direct vent gas water heaters (DV). The light goes out due to improper venting or air supply Check out this article to learn more about condensation and its effect on the water heater. Some include high-efficiency water heaters that produce flue gases with the lower temperature, an undersized heater when the incoming water is very cold, and when you start the unit for the first time. There are several reasons why condensation happens. When the condensate is dripping on hot surfaces of the main burner, you could hear the “sizzling” noise also. In this extreme case, the condensate is running down the flue tube and is dripping on the burner assembly, which results in the pilot outage. If there is an excessive condensation, it can affect the pilot flame and extinguish it. Most of today's energy-efficient water heaters will produce a certain amount of condensate. Note: Repairing a pilot light shouldn't be complicated, but if you don't have the right tools or you lack skills and need any assistance, contact a professional plumber. At the same time, newer, advanced models utilize piezoelectric sparks or a hot surface igniter which is more durable and reliable. Note that most of the older and economy gas water heaters are equipped with the pilot. ![]() Otherwise, if the pilot light is not functioning correctly, the unit won't turn ON, and you won't have hot water. To prevent problems with the water heater pilot light, it is crucial to carefully read the manufacturer's instructions, especially how to maintain the gas water heaters and how to light the pilot. ![]() The pilot is widely used due to its proven and reliable work, but its main disadvantage is wasting gas when not working. Every gas appliance is equipped with similar safety devices, prevent gas from leaking inside the house. If there is no pilot light or it is blown out, the tip of the thermocouple cools off and stops generating electricity, so the gas valve closes, and the unit shuts off. 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.Įxcept 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 that the gas can flow. It is common on fireplaces and older/cheaper furnaces and water heaters.Ī pilot light is always burning while using a small amount of gas either a water heater is running or not. How does it work, and how to recognize if it is operating correctly or not? What is a pilot light and how does it work?Ī pilot light is a small device designed to provide the flame and light the gas coming out of the gas valve and main burner. How to fix the water heater when the light goes out, does not light, won't stay lit, the pilot flame is too small or too large. Troubleshooting pilot light problems on gas water heaters. Facebook Twitter Pinterest Tumblr Reddit WhatsApp
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