There are a few things that could be causing your electric tankless water heater to shut off. Finally, the problem may have to do with low water flow rate.
If your unit doesn’t have this option or you can’t find the water supply line, you can shut down the cold water supply for.
How to shut off gas water heater. The thermostat is located near the bottom of the water heater. Turn the knob on top of the thermostat clockwise to the off position. The customer said their tankless water heater kept shutting off in the middle of a sower.
Here are a few possible reasons why your gas water heater keeps turning off. Turn the gas valve 1/4 turn until the lever is perpendicular to the gas line to shut off the gas. This is the only way to make sure the gas is reaching the pilot light.
Check that the heater is getting electricity, gas and water. A faulty thermocouple would shut off the gas supply to even a burning pilot light, which would result in cold water for you. Gas water heaters need to have a flow of gas to the pilot light in order to remain working.
This setup leaves the water heater off for about 11 hours a day, which should be a significant. Shut off the gas valve. The three main settings are �off�, �pilot� and �on�.
You shouldn�t have any trouble locating it because it�s required to be in an accessible location. Then have the timer shut off the unit before 6 a.m., and turn it on again from 10 a.m. The guaranteed issue will be that your water heater will take a long time to heat the tank water back up.
A handle parallel to the pipe indicates an open valve. Make sure the line valves are open. Dirty or dusty pilot light.
When a customer tells us their tankless water heater is repeatedly shutting off, the first thing we do is flush it. Here’s another example from a recent customer call. The valve will look similar to the one in the image below.
Shut off the water inlet at the tank to prevent siphoning; You create more problems by turning off the water heater between uses and back on within short periods of time. There are a few things that could be causing your electric tankless water heater to shut off.
Gas from this valve lights your pilot light and eventually lights the gas burners that heat your water. Your gas valve is what delivers natural gas directly to your water heater. Leave as much hot water in the tank as possible to forestall freezing concerns if your heating system becomes inoperable.
A recent example of another tankless water heater that was never flushed. Turning the dial to �pilot� will shut the. Check to make sure that the water heater has turned off.
You can also shut off the cold feed valve just to ensure no water is siphoned out of the tank if cold water is also used with the tank off. Shut off electricity and gas to the heater to prevent undesired discharge, and possible over pressurization; Some units, there will be difficulties to turn it on again, lighting a pilot light comes to mind for gas powered.
Another thing that you must look out for is the buildup of dirt in your thermocouple since that would prove to be a hindrance for the thermocouple to sense the flame of the pilot light. If your unit doesn’t have this option or you can’t find the water supply line, you can shut down the cold water supply for. Most water heaters have a shut off valve on the cold water line that is connected to the top of the water heater tank on the right side of the unit.
The water heater gas valve is located toward the bottom of your water heater just above the burner chamber. On the top of the gas valve that has various settings on it. This would, however, not allow much of the hot water to be used out of the tank as this will have now air locked the system.
But if this valve or its inner elements are damaged, it can’t deliver enough gas to your water heater, causing it to shut on and off. Check the filter to make sure that there�s no debris in it. Turn off the gas or electricity to the water heater.
To find a water heaters’ gas shut off valve look for a single handle valve that would usually be located at the bottom of the unit about a foot or two out. Also, when you turn off your water heater when on a vacation, you only meet more problems. If the gas supply is blocked, or if the amount of gas isn’t sufficient, the pilot light won’t stay lit.
Finally, the problem may have to do with low water flow rate. If you don�t see a valve near the heater, follow the gas line until you find one. Go to your circuit breaker panel, find the breaker for your water heater, and switch it to the off position.
Turn this valve in the clockwise position to turn the gas off.