Last night my son said there wasn't any hot water. My husband turned up the thermostat on A.O.Smith gas water heater Part no. 183496-000. This morning there was water pouring out of the TPR pipe. We do have an expansion tank.
When I shut off the hot water outlet pipe from the tank, the water stops pouring from the TPR pipe.
Is it just a matter of waiting til the temp comes down in the water? Or is something broken?