Gas furnaces and commercial stoves are generally safe and reliable, but an extinguished pilot light can create extremely dangerous conditions that can poison guests or even cause an explosion. A failed pilot light can be a one-time occurrence, or it might be caused by a mechanical failure, especially in aging restaurant equipment. Below are some of the most common reasons your pilot light might be going out.

3 Common Causes for Failing Pilot Lights

1. Inefficient Pilot Light

The pilot light is monitored by a thermocouple, which is designed to shut off the gas supply if the pilot light isn’t running effectively. Problems in the gas line or accumulated residue in the nozzle itself can cause the pilot flame to flicker or burn at a lower temperature, in which case the thermocouple might be turning off the light.

2. A Malfunctioning Thermocouple

The thermocouple itself can also cause the pilot light in your furnace or stove to go out and may lead to more dangerous issues. After all, if the thermocouple is incorrectly sensing issues with the pilot light, it might also fail to actually shut off the gas supply. Pilot lights that won’t stay lit often indicate a faulty thermocouple, so you should call a repair professional immediately.

3. Dirty Gas Lines

The pilot light needs a steady supply of gas and oxygen to stay lit, either of which can be obstructed by dirt or residue deposits. Fortunately, a maintenance technician can usually correct these issues easily without replacing your expensive commercial equipment.

If your commercial furnace or gas-powered equipment isn’t running as productively as it should, the experienced professionals at Lindbergh Commercial Services offer the technical expertise and level of service you need. Their highly trained technicians hold advanced industry certifications and dedicate themselves to providing exceptional support to businesses throughout the St. Louis Metro Area. Visit their website for more on their gas furnace and commercial equipment repair services, follow their Facebook for more tips and advice, or call (314) 731-0404 to discuss your issues and schedule an appointment.