How do I know if my gas control valve is bad on my water heater?
If the burner stays on, turn the gas supply off and replace the gas valve. If the pilot is lit, you have a tank of cold water, the thermostat turned up and the burner does not fire up, either the burner orifice is clogged or the water heater gas valve is bad.
Does a gas water heater have a reset button?
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.
How does a Honeywell gas valve work?
The Smart Valve system uses a 24 VAC powered hot surface pilot gas igniter to ignite the pilot gas. The main gas is ignited in both instances by a pilot gas burner. The Smart Valve system is self-contained, thus eliminating the need for a separately mounted ignition source, usually in the furnace or boiler vestibule.
How does a gas valve on a water heater work?
A water heater gas valve works by opening and closing to control the intake of gas, regulating the temperature in the water tank. The gas valve is controlled by a thermostat, which signals for the valve to open with low temperatures and close when it reaches the heating threshold.
What gas is in a water heater?
The gas valve on a water heater contains an electromagnet, which activates when heat from the pilot flame reaches the thermopile circuit. The activated electromagnet keeps the gas valve open, letting the gas flow into the main burner and pilot. When the pilot flame is out, the electromagnet deactivates, and the gas supply closes.
Does a water heater have a thermostat?
Nearly all residential hot water heaters have two thermostats and two heating elements. In normal, low water usage conditions, the lower element is the one doing the work. It is only under high water requirements that the entire tank will cool down; the lower element will then shut off and the upper element takes over the load.
What are the parts of a gas water heater?
Components of a Water Heater. Electric and gas water heaters have a number of components in common, including the drain valve, the TPR valve, an internal anode rod, dip tube and pipes and fittings for hot water and overflow/pressure relief.