Water Heater Pilot Light Keeps Going Out Not Thermocouple

5 reasons why your pilot light keeps going out.

Water heater pilot light keeps going out not thermocouple.

Thermocouple was replaced on my air furnace bruce 11 17 12. Wi usa 53066 providing heating air conditioning. This device is designed to pick up an electrical signal from the pilot light s heat to determine whether or not the pilot is on. Thermocouple sensor tip not properly mounted secured in the flame path.

When the water heater pilot light goes out first try relighting it following the directions on the water heater label. If the thermocouple fails it doesn t send the signal to the gas valve and the gas valve shuts off. This equipment is the core reason why your water heater functions it also knows if the pilot light is on or off through an electric current that draws power from the pilot s heat. The thermocouple in your water heater keeps the pilot lit by sending a low current electrical signal to keep the gas valve open.

One of them is a dirty thermocouple. Sometimes it s referred to as the flame sensor it s a safety mechanism that shuts the gas off should the pilot go out. When a thermocouple fails the pilot light won t stay lighted. Thermocouple problems can be fairly common and this component is often the culprit when the water heater pilot keeps going out.

Another common problem causing the pilot to go out or not stay lit is a failed thermocouple pilot generator. Checklist for thermocouple problems. Thermocouples work by producing a small amount of voltage when it is heated. If you can light your pilot light but the water heater pilot keeps going out there are many possible causes.

When you have a problem with your water heater not lighting look at your water heater pilot. Bruce check for these other causes of loss of the gas pilot flame. The thermocouple which operates as a safety device turns the gas supply off when the pilot light goes out. It consists of a heat sensor connected to a solenoid.

If the pilot doesn t relight if it goes out right after lighting or if it goes out repeatedly by far the most common cause is a bad thermocouple. Once the thermocouple detects that the pilot light isn t lit it turns the gas off as a safety measure. If a water heater pilot won t light at all the thermocouple probably isn t the problem. If the thermocouple fails to shut off the gas all the gas flowing through the furnace could get into your home.

This is the pilot flame that provides the heat. The procedure for lighting a standing pilot always includes lighting the flame then manually holding in the gas valve to keep the flame burning and give the thermocouple time to heat up. What would cause standing pilot flame to keep going out.