The main control valve is responsible for regulating the heater s gas and water pressure.
Gas water heater problems pilot light.
Although a blocked gas line is one reason why the pilot light on a rheem water heater won t light or stay lit there are other reasons as well some easier to correct than others.
The pilot light flame should be blue slightly tinged with yellow only at the tip a sign there is enough heat to warm your water or your home.
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.
When the pilot light goes out for any reason the thermocouple closes the burner s gas supply valve to prevent gas escaping and filling your house.
Gas heater pilot light troubleshooting.
Sometimes the thermocouple just needs an adjustment so that the tip lines back up with pilot light flame.
A faulty thermocouple or malfunction of the gas valve could be the culprit but the problem may be as simple as a draft coming from a crack in the wall or under the door.
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.
The water heater pilot light is a small flame that ignites the gas burner on your water heater.
If this pilot light ever goes out.
The thermocouple is a safety device that stops gas flow when the pilot light goes out.
Turn off the water.
If it s not the pilot light check the thermocouple.
It starts the whole process by first supplying a small amount of gas to the pilot light.
For electric hot water heaters start troubleshooting with a quick reset.
The pilot light in your hot water heater does more than simply ignite the gas.
A pilot light is always burning while using a small amount of gas either a water heater is running or not.
Without it the water heater won t be able to maintain internal temperatures allowing the water to cool off.
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.
It s the soul of your water heater.
Your heater s pilot light allows the burner to cycle on and off while maintaining the water in the tank at a constant temperature.
If the gas is lit it fully opens the main valve to provide a steady supply of gas.
In this hvac training video i show up close how the thermocouple pilot light and gas valve work on a water heater furnace fireplace as well as other ap.
Pilot light issues are some of the most common problems experienced with gas water heaters.