How do I know if my gas 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.
Are water heater gas valves universal?
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.
Do water heater gas valves go bad?
Gas control valves do not fail often, but it can happen in rare instances. The thermocouple is a more likely culprit, and can be replaced without much expense. Even though the limiter can be replaced, it probably indicates a failure in the thermostat or gas control valve as well.
What causes a gas valve to go bad?
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. If your furnace has a standing pilot light, the thermocouple could be worn out.
How do you test a gas valve on a water heater?
Make sure the dial on the water heater gas valve is set to off. Turn the shut off valve on the gas line to the on position (parallel with the gas line). Use soapy water to check for leaks. Never use a lighter or any kind of flame to check for gas leaks.
Can you replace the thermostat on a gas water heater?
The water heater thermostat is part of the gas valve. They cannot be replaced separately from the valve.
How much does it cost to replace a water heater thermostat?
The average thermostat replacement cost is between $100 and $300. Most other repairs are equally affordable. There are two main types: gas and electric. A gas unit works by way of a gas flame while an electric one works using electric elements, or coils.
Can a gas valve leak?
A gas valve leak can emit natural gas or propane into the air and pose safety and environmental threats. A leak could even remain within your piping system and cause a hazard to your fire feature and gas lines/connections. Either way, a leak is never good and must be tended to immediately.
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.