Why does my wall furnace keep turning off?

If your furnace shuts off too often, you could have a corroded or dirty flame sensor. A flame sensor lets your system know there’s a flame when the gas valve is open. If there isn’t a flame, the sensor will shut off the gas valve to keep the gas from getting into your house.

Why does my propane wall heater keep going out?

If the thermocouple is too far from the flame, this can cause the pilot to go out and shut down the propane heater; you can fix this easily by moving the thermocouple closer to the flame. The thermocouple could also be worn out, in which case it needs to be replaced.

How do you start a wall heater?

How to Turn On a Wall Heater

  1. To turn on your gas heater, locate the knob for starting.
  2. Turn the knob to “Pilot,” and then push down on the “Ignite” button.
  3. Once the pilot light comes on, hold down the Ignite button for 10 to 15 seconds.
  4. Set the temperature on the wall heater to your desired heating level.

Where is the reset button on a wall furnace?

Locate the reset button on the furnace and press it to reset the furnace. It is usually located inside the blower compartment on the side of the blower motor. Be cautious as the housing may be hot. If the button is popped up, press it down.

Why is my gas heater not lighting?

If your furnace won’t ignite, the source of the issue may be a broken flame sensor. The sensor is responsible for turning off the gas burners to avoid gas buildup. Once this component starts to malfunction, it may stop the burners from igniting altogether.

Why does my furnace keep shutting off after a few seconds?

A common reason a furnace short cycles is because the heat exchanger, the part that heats your air, is getting too hot due to a lack of airflow. Once the heat exchanger overheats, it trips the high limit switch, which shuts the furnace down to protect it.