Our regular activities, such as taking showers and cleaning dishes, require hot water, which a gas water heater supplies. However, it could experience problems that call for troubleshooting, just like any other appliance. Resetting the gas water heater is one issue that arises frequently. This article will guide you through the safe and efficient reset of your gas water heater.

Recognising the Need for a Reset

It’s crucial to comprehend the potential necessity for resetting a gas water heater before we proceed with the reset procedure. This is usually necessary when a fault is detected by the heater’s safety measures, which then preventatively turn the unit off.

These security measures are intended to guard against mishaps and gas leaks. A broken thermostat, a dead pilot light, or sediment buildup in the tank are a few typical causes of a gas water heater turning off.

how to reset a gas water heater

Safety Measures

Your primary consideration while working with gas appliances should always be safety. Follow these safety precautions before attempting to reset your gas water heater:

  1. Shut off the gas supply by turning the gas shut-off valve to the ‘off’ position. This valve should be found next to the heater.
  2. Make room for ventilation: To prevent the buildup of gas fumes, make sure the space around the water heater is well-ventilated.
  3. Put on safety gear: Gloves and safety eyewear are recommended while working with gas appliances.

Guidelines for Resetting a Gas Water Heater

Let’s go over how to reset your gas water heater now:

  1. Locate the reset button by: The majority of contemporary gas water heaters contain a reset button. Usually red, this button can be found close to the thermostat control valve. If you’re unsure, look up instructions in the heater’s manual.
  2. Switching the Thermostat to the Lowest Temperature Setting will ensure that the heater is turned off.
  3. Press and hold the reset button for a period of three to five seconds. The control module or safety switch will be reset by this procedure.
  4. Release the Button: Let go of the button after holding it for the desired amount of time. If the reset was successful, you might hear a clicking sound.
  5. Start the Heater: Reset the thermostat to the preferred temperature.
  6. Relight the Pilot if Required: To relight the pilot light if it has gone out, adhere to the manufacturer’s instructions. This frequently entails setting the gas control knob to “Pilot,” holding it down, and lighting the pilot with a long lighter. Put the knob back in the “On” position after it has been lit.
  7. Carefully turn the gas shut-off valve back to the ‘on’ position to turn on the gas supply.
  8. Monitor the Heater: For the next several hours, keep a watch on your water heater to make sure it runs well.


It’s simple to reset a gas water heater, but it’s important to prioritise safety and carefully follow the instructions. In order to inspect and fix your gas water heater, it is preferable to call a competent specialist or plumber if resetting the heater doesn’t fix the problem or if you feel uncomfortable performing the task.

In conclusion, knowing the reasons a gas water heater might need to be reset and adhering to the right technique can help you rapidly fix common problems and restore your hot water supply. To ensure the continuous safe operation of your gas water heater, keep in mind that safety should always be your top priority. If in doubt, get professional assistance.