Hot Water Heater Gas Valve Troubleshooting

Shutting off the gas.

Hot water heater gas valve troubleshooting.

This is done at the shut off valve that is in the gas line. Gas hot water heater troubleshooting usually leads you to the thermocouple. Shut off the water supply to the water heater if necessary by closing the shutoff valve on the cold water pipe coming into the top of the heater tank. For electric hot water heaters start troubleshooting with a quick reset.

Before you determine that the gas control valve is faulty check the other components. Sometimes the thermocouple just needs an adjustment so that the tip lines back up with pilot light flame. A bad gas valve will not allow any gas to go to the burner or pilot light. Turn off the water heater for a few minutes and then turn it back on.

Example tank is a john wood 40 gallo. The last step of the rv water heater troubleshooting process is to turn off the lp system to check for a spark. If the valve is the cause then a professional will likely need to repair this. Common problems and how to fix them.

When you see water that appears to be leaking from the bottom of a gas water heater it could be because of condensation try turning up the thermostat a leaking or loose drain valve or the t p valve draining some water through the overflow pipe due to tank overpressurization. The other less common problem would be the gas valve. You may find that getting an exact match to the one you have difficult. Do not turn off the water unless the water heater s power and gas are turned off.

Again easy fix quick solution. Locate the hot surface igniter and look for a spark or glow there. The thermocouple is a safety device that stops gas flow when the pilot light goes out. It could be the gas pilot valve.

Go to the article gas water heater thermocouple issues for information on this common repair. The first thing you need to do is shut off the gas to the hot water tank. If the pilot isn t the issue then replacing the gas valve should correct the problem. Turn off the gas supply by turning the gas pilot control valve to the pilot setting on the water s gas valve.

The gas pilot valve is the piece that supplies fire to the gas. Before you can replace your water heater gas valve you need to purchase a new one. The pilot is the most common reason for a lack of hot water. Troubleshooting the gas control valve will help you determine whether the valve is faulty or whether there is a problem with the thermostat heat limiter the pilot or even the gas burner.

There should not be a flame up there if the valve is working correctly. Set the thermostat or the device s controller slightly above the current room temperature. If the valve is working hot water shouldn t be an issue. Okay but what if you get through each of these steps and still can t figure out what s wrong.