Water Heaters

What to Do if a Water Heater Pilot Light Keeps Going Out?

The water heater pilot light is considered one of the essential things that keep the appliance on for a long time. This also makes sure that the water is getting warm in a short period, and one can use warm water at any time, comfortably. This is a valuable and essential part of a heater.

There are many reasons that can make a pilot light go out. Some of which are easily solved and others require the assistance of an HVAC expert. Keep on reading to know more about this problem and what actions to take when it happens to your water heater.

Reasons Why Your Water Heater’s Pilot Light Go Out

One of the pervasive and most occurring problems that can take place in some of the old water heaters, is their pilot flame light that keeps going out after a short time. When this starts to happen all of a sudden, your burner won’t begin to ignite on its own, and the water at your home will be cold.

Here we will look at some of the widespread reasons why the heater’s pilot light at your home might go out and what can be done to avoid it. Some of the principal reasons which the light of the water heater goes out include:

Problem with a Thermocouple

Your water heater’s thermocouple is responsible for sensing out when your pilot light is lit. If this thermocouple noticed that the light of the pilot has gone out, this thermocouple shuts off the supply of gas towards the flame to prevent the negative consequences. Over time, thermocouples wear off and they may shut off the gas supply, even if it is burning appropriately.

Dirty Thermocouple

In addition, the thermocouple of your water heater can suffer from the dirt that is buildup inside it. In this case, it will be harder for the thermocouple to sense the light of your pilot, and it will shut off the flame of the gas supply.

The Flame Was Being Blown Out

If the water heater at your home doesn’t have any sealed chamber of combustion, there are chances that the pilot’s light can be blown out because of the much stronger draft that is present near the point. Make sure that your water heater is in a closed room and that no window is open next to it.

Your Water Heater Doesn’t Have Enough Combustible Air

If your water heater is located in the utility closet or anywhere else where it is being there’s not enough air, there are chances that the pilot’s light may go out. This is the kind of situation that may lead to a Carbon-Monoxide leak that is life-threatening.

What to Do if a Water Heater’s Pilot Light Goes Out?

If it is happening for the first time where the pilot for the water heater has gone out, then you can try to do it yourself without help from other people. Here are some steps that need to be undertaken:


The pilot of the water heater is an essential part to keep the water warm. Without this, it is not easy at all to maintain the temperature of the water. The pilot of the water heater can turn off due to many reasons that have been discussed above.

In general, and to be on the safe side, you should request water heater maintenance at least once a year. In case you always keep your water heater’s temperature high, then it is best to have maintenance performed every 6 months.

Call Smile HVAC for Water Heater Repair Services

Does your water heater’s pilot light keep going out? Don’t panic, save yourself trouble and time, and get the help of experts. To get the best services in GTA for the water heater repairing, all you need to do is call Smile HVAC. We also offer water heater installation, maintenance, and inspection services. You will get all of the best services in the shortest amount of time. Our team makes sure that all clients are satisfied, and that all HVAC-related issues are solved quickly.