CHECK FOR GAS AND THAT IT IS GOING IN THE RIGHT PLACE If a bug got in the orifice closest to the igniter gas will flow to the other burners but may not ignite. A bug in the venturi can disrupt the flow and cause a failure to ignite. Low inlet or outlet gas pressure could have the same effect.

Why is my furnace turning on but not igniting?

If your gas furnace initiates the start cycle but does not fire up, it’s likely because of a faulty, damaged, or dirty ignitor/sensor. This is a very common furnace problem—you can try to clean the sensor and replace the ignitor.

How do you troubleshoot a Trane furnace?

HVAC Troubleshooting

  1. Make sure your thermostat is on and set to ‘heat’ …
  2. Open the vents throughout your home. …
  3. Clean or have your furnace filter replaced.
  4. Check the furnace switch and your home’s breaker panel. …
  5. Look for a blue furnace flame. …
  6. Relight the pilot light or check electric ignitor. …
  7. Check the gas valve.

How do you check the pilot light on a Trane furnace?

Take off the furnace cover and locate the gas valve and the gas control, which is a plastic or metal knob with three settings: “on,” “off” and “pilot.” You’ll see three tubes coming from the bottom of the gas valve.

Why is my furnace not getting gas?

If your furnace is not turning on you should first check if the filter is clean. Dirty filters cause insufficient airflow and can prevent the furnace from starting. Other reasons it won’t start can stem from improper thermostat settings, forgetting to turn on the gas line, or faulty pilot light.

Is there a reset button on a Trane furnace?

Turn off the power and open up the control panel to access the reset buttons on these models. Next, lift the cover to the blower compartment, and you should see the reset button sitting next to the blower motor and blower wheel.

How do you clean the flame sensor on a Trane furnace?

Quote from the video:
Quote from Youtube video: So if you have a situation like this what you have 90% of the time is just a dirty flame sensor. So we'll go through the steps on how to clean it. So the right side of the furnace.

How can I tell if my furnace ignitor is bad?

If you have a faulty furnace ignitor, it won’t produce that tiny spark to heat the air coming from your Furnace. Your heater blows air at the same temperature as the cold outside air without it. Cold air blowing through your vents is a good sign that you have a heating problem within the Furnace.

How do I test my furnace ignitor?

Quote from the video:
Quote from Youtube video: If the igniter has continuity your multimeter should read anywhere from ohms if there is no reading on the multimeter or very little change then there is no continuity.

How do I reset my electronic ignition furnace?

How to Reset an Electric Furnace

  1. First, turn off the power supply to the furnace by turning off the breaker in the circuit box.
  2. Locate the reset button on the furnace and press it to reset the furnace. …
  3. If the button is popped up, press it down.
  4. Return the cover to the blower compartment and turn the power on.

How do I reset my Trane furnace lockout?

High Temperature Limit Lockout

If the error light on the Trane is flashing four times, lower the thermostat to just above air temperature, and press the red “Reset” button. If the problem occurs again, disconnect power, and contact a qualified service professional for help.

How do you reset a Trane?

All Thermostat Models

  2. Locate the switch for your thermostat in the breaker box.
  3. Flip the switch to the OFF position for 20-30 seconds.
  4. Return the switch to the ON position.
  5. The reboot process will take several minutes to complete.

What does a blinking red light mean on a Trane furnace?

You should never be concerned when there is a continuously blinking light. This means that your furnace is working normally. The red blinking light for your Trane XR90 furnace indicates that your unit was shut off due to a problem. Your system is currently locked out of its normal operation or ability to function.

How do you fix a blinking red light on a furnace?

It might be that there your furnace is not receiving power at all. In that case, you need to go outside and check your circuit breaker box and find the breaker switch the furnace is tied to. If one of them is out, switch it back on and try again.

What does a solid red light on my furnace mean?

If your oil furnace isn’t coming on, you may see a red light illuminated on the burner unit. When lit, this red light, also called a lockout light, indicates that a safety mechanism on your furnace has caused a shutdown because it has detected a problem or recognized a fault.

Should I hit the reset button on my furnace?

The purpose of the reset button on a furnace is to shut it down before it can trip your circuit breaker. The need for this may arise if the furnace becomes too hot, or if there is some sort of electrical system interruption. To get the furnace working again, you simply press the reset button back down again.

Where is the flame sensor in my furnace?

A furnace flame sensor is a very basic part of your furnace. It’s located on the burner assembly and is just a thin metallic rod. It’s usually bent, and it sits just in front of the pilot flame inside the furnace.