Water Heater Gas Control Valve Troubleshooting

If you don t have 24 vac at the gas valve terminals check for continuity across all the safety devices in the control circuit of the boiler or furnace as it s likely one of the safety devices is interrupting the circuit to the main valve.

Water heater gas control valve troubleshooting.

Check all wiring connections. A stuck valve could release gas into the air without regulation or the valve could cause the unit not to fire up at all. Never use a lighter or any kind of flame to check for gas leaks. Turn the gas valve to the pilot setting and shut off the water to the heater.

If so and the boiler or furnace isn t firing up then you need a new gas valve. Always refer to the user manual for troubleshooting tips it can solve the problem more often than not. A bad gas valve in a honeywell appliance such as a water heater or furnace that is powered by natural gas can go bad and affect the performance of the unit. 4 replace gas valve if the temperature has exceeded the limit the gas valve will need to be replaced.

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. This will make it safe to troubleshoot. Proper gas valve adjustment can save your home from a devastating fire. Because gas is involved problems with gas valves are a major safety concern.

If problem persist you will need to replace the thermopile. Turn the shut off valve on the gas line to the on position parallel with the gas line. 2 replace pilot assembly insufficient power to the gas control valve thermostat. Www handymanpf com i tear apart a gas hot water heater valve thermostat.

Continue reading below our video of the day. Use soapy water to check for leaks. A gas control valve is one of the most important parts on a gas water heater. Before you start any kind of troubleshooting you should make sure the power to the heater is turned off.

Do not turn off the water unless the water heater s power and gas are turned off. 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. When replacing the thermopile you must replace the entire pilot assembly. Make sure that the pilot control valve of the heater is turned off before you start repairing.

Unfortunately gas control valves can fail ad leave your water heater useless. Before you determine that the gas control valve is faulty check the other components. Make sure the dial on the water heater gas valve is set to off. Replace and repair the parts of the water heater with caution.

So we all can see what it is made of inside i do not recommend you try to rebuild.