Why does oil furnace keep shutting off?
Why does oil furnace keep shutting off?
If your furnace keeps shutting off, it could be due to low airflow. There are several indirect issues that cause low airflow. Dirty Air Filters. If you don’t change your air filters often enough, the filters will become dirty and clogged, which means the heat exchanger retains heat and eventually causes it to overheat.
What does it mean when your furnace won’t stay lit?
Probably the most common issue when dealing with a furnace that will not stay lit or ignite consistently is a dirty flame sensor. The flame sensor acts as a communication vehicle with the circuit board and tells it when a flame is lit inside the furnace.
What to do when your pilot light won’t stay lit?
A Broken or Damaged Thermocouple – In this instance there is something wrong with the equipment and a technician would be required to replace or repair the thermocouple in order for your pilot light to stay lit again.
Why is the pilot light on my gas furnace not working?
Your temperature was already supposed to be at 75 degrees and it feels like 40 or 50 degrees inside. So you head down to the gas furnace to see what’s going on. The most common reason why a gas furnace may suddenly stop working is because the pilot light has gone out.
Can a dirty flame sensor cause a furnace to shut off?
When the sensor gets rusty or dirty, it cannot properly detect the flame and causes the furnace to malfunction. A clear indicator of a dirty flame sensor is when the furnace quickly cuts off two or three times a day during the normal heating cycle.
Why does my furnace pilot light not stay lit?
Be sure to inspect the thermocouple carefully. It may be that it’s dirty and needs cleaning. It can easily be cleaned off with fine grain sandpaper. A dirty pilot tube can also prevent the pilot from staying lit. If the pilot tube is dirty, let the furnace cool down and turn off the gas. Once it has cooled, the pilot tube can easily be cleaned.
A Broken or Damaged Thermocouple – In this instance there is something wrong with the equipment and a technician would be required to replace or repair the thermocouple in order for your pilot light to stay lit again.
What to do if your oil burner won’t start?
If the OIL BURNER WILL NOT START. A good starting point is. at HEAT WON’T TURN ON. You can return here from that article. Start right at the room thermostat. Or jump right into the detailed oil burner diagnostic step sequence below. Make a quick visual check for: Power switched off to the unit.
How can you tell if oil is coming out of the burner?
No oil flow comes out of the burner. You already checked that there is really oil in the tank, right? Check that the oil tank float gauge is not stuck. Bleed the fuel unit of any trapped air, then check the pressure (pressure out, vacuum in) on the oil lines.