Quick Answer: How Do You Check A Gas Valve?

Are gas control valves interchangeable?

Gas Water Heater Parts – Control Valves Natural and propane water heater gas valves are not interchangeable, so, be sure to order a valve for your type of gas..

What causes a gas valve to go bad?

There are several reasons this valve may stop working properly. The valve itself may have simply worn out or may be damaged due to basement seepage or submersion. Alternately, one of the electronic gas ignition components or a glitch in the safety circuit may be to blame.

How much does it cost to replace a gas valve on a water heater?

A replacement valve costs around $20 and calling in a professional could bring your cost up to $200. This isn’t a steep cost to ensure proper diagnosis and installation.

Can a gas valve be repaired?

The gas valve cannot be repaired in the field. Only the gas valve manufacturer or someone certified by the manufacturer of the gas valve can make repairs. Then re-certifying the safety of the gas valve. This also applies to gas valves that have been submerged underwater due to flooding.

What does a gas valve do?

A furnace gas valve is a component of your furnace’s fuel system. The furnace gas valve opens and closes, which allows the flow of gas to the pilot light and burner(s). While the component itself if actually rather simple, a furnace gas valve is a crucial part of your HVAC system.

What does S and O mean on gas valve?

To allow a gas to be contained within a cylinder a valve is usually fitted into. Typically this can mean a minimum service life of at least years for many valves, however,. It does not need to be removed for access to the valve. The wetted area is sealed against the spindle by an ‘O’ ring(s) located around the spindle.

Where should a gas shut off valve be located?

The gas meter and gas service shutoff valve is usually located on the side or in front of the building. If the building has a breezeway, it could be located there.

How do you know if a valve is open or closed?

When the handle of a ball valve is parallel to the valve or pipe, it’s open. When it’s perpendicular, it’s closed. This makes it easy know if a ball valve is open or closed, just by looking at it. The ball valve below is in the open position.

How do I know if my gas valve is bad?

How to Tell If a Honeywell Gas Valve Is BadTurn off the gas supply valve to your appliance to test whether your valve is capable of shutting down properly. … Open the manual gas switch if the gas valve fails to operate and look to see if gas is flowing to the main burner or pilot.More items…

How do you test a gas valve with a multimeter?

Testing with a multimeter lets you know the valve works.Turn off the furnace at the wall control. … Take out the bolts in the service panel on the side of the furnace using a nut driver. … Pull the wires off the gas valve terminals. … Turn the test control on the multimeter to “mV,” which stands for millivolt.More items…