While Austin winters are generally mild (with temperatures often in the 70s), recent years have brought some surprisingly chilly days with lows dipping into the 30s. When those cold spells hit, a functioning furnace is a must-have for staying warm and comfortable. But what happens when your furnace refuses to cooperate and the pilot light goes out? Don’t panic! This guide will walk you through how to light a pilot light, troubleshoot common furnace problems, and keep your home cozy all winter long.
Step-by-Step Process of Lighting a Furnace Pilot Light
- Safety First: Assess the Area
- Ventilation: Make sure the area around the furnace is well-ventilated.
- Gas Smell: If you smell gas, DO NOT attempt to light the pilot light. Turn off the gas supply to the furnace and call your gas company or a qualified HVAC technician immediately.
- Locate the Pilot Light and Controls
- Access Panel: Most furnaces have an access panel that you’ll need to remove to access the pilot light and controls.
- Pilot Light: Look for a small flame (when lit) near the gas burner.
- Control Knob: There should be a knob with settings like “On,” “Off,” and “Pilot.”
- Reset Button: This button is usually located near the control knob.
- Turn Off the Gas
- Control Knob: Turn the control knob to the “Off” position.
- Wait: Wait at least 5 minutes for any residual gas to dissipate.
- Light the Pilot Light
- Control Knob: Turn the control knob to the “Pilot” position.
- Reset Button: Press and hold the reset button.
- Ignite: While holding the reset button, use a long lighter or match to light the pilot light.
- Hold: Keep holding the reset button for about 30 seconds after the pilot light is lit.
- Release: Slowly release the reset button. The pilot light should stay lit.
- Turn On the Furnace
- Control Knob: Turn the control knob to the “On” position.
Troubleshooting
- Pilot Won’t Stay Lit: If the pilot light goes out when you release the reset button, the thermocouple might be faulty. This is a safety device that shuts off the gas supply if the pilot light is out. You’ll need to call a technician to replace it.
- No Gas Flow: If you don’t hear gas flowing when you turn the knob to “Pilot,” there might be an issue with the gas supply. Check that the gas valve to the furnace is open.
Troubleshooting Your Furnace Pilot Light Issues
It’s frustrating when your furnace decides to act up, especially on a chilly night. While you can handle some common issues yourself, others require the expertise of an HVAC professional. Here’s a breakdown of frequent furnace problems and how to address them:
Weak Pilot Flame: A healthy pilot light burns strong and blue. If yours is weak or flickering yellow, it could indicate a clogged pilot orifice (where the gas comes out), low gas pressure, or a dirty thermocouple. Try gently cleaning the orifice with a needle or compressed air, and check your gas supply. You can also try lightly cleaning the thermocouple with fine sandpaper.
Pilot Light Won’t Stay Lit: This is often caused by a faulty thermocouple or a draft blowing out the pilot light. Make sure there are no drafts around the furnace. If the problem persists, it’s time to call in a professional, as the thermocouple might need replacing.
Furnace Cycles On and Off Frequently (Short Cycling): This can be annoying and inefficient. Before you panic, check the simple things first:
- Air filter: A dirty air filter restricts airflow and can cause overheating. Replace it regularly.
- Obstructions: Make sure there’s nothing blocking airflow around the furnace.
- Thermostat: Is it set correctly? You might be inadvertently causing the short cycling.
If these don’t solve the issue, a professional can diagnose problems with the blower motor or other components.
No Gas Flow: When you turn the knob to “Pilot,” you should hear gas flowing. If you don’t, there might be an issue with the gas supply. Before you go any further, check that the gas valve to the furnace is open. If it is and you still don’t hear gas, contact your gas company or an HVAC technician immediately.
Safety Concerns to be Aware of When Lighting a Pilot Light
Working with gas appliances requires caution. Here are some essential safety reminders:
Carbon Monoxide (CO) is a Silent Killer: This colorless, odorless gas can be deadly. Install CO detectors on every level of your home and outside sleeping areas. Symptoms of CO poisoning include headache, dizziness, nausea, confusion, and shortness of breath. If you suspect CO poisoning, get to fresh air immediately and seek medical attention.
Suspect a Gas Leak? Get Out! Natural gas has an added rotten egg smell to help you detect leaks. If you smell gas, leave your home immediately. Don’t turn on any lights or appliances, and call your gas company or 911 from a safe location.
Prevent Fire Hazards: Keep flammable materials away from the furnace, and clean the area regularly to prevent dust buildup. An annual furnace inspection can identify potential fire hazards like faulty wiring.
Remember, when in doubt about your furnace, it’s always best to err on the side of caution and call a qualified HVAC technician. They have the expertise to diagnose and fix problems safely and effectively.
Call TemperaturePro Austin for Furnace Help!
Troubleshooting your furnace can be a rewarding DIY project, especially when it comes to something as essential as how to light a pilot light. But remember that safety and expertise are crucial. If you encounter any issues that seem beyond your comfort level, or you’re unsure about any aspect of furnace maintenance, don’t hesitate to call in the professionals.
For reliable furnace repair and maintenance in Austin, contact TemperaturePro Austin. Our experienced technicians can ensure your heating system is running smoothly and efficiently all winter long. Schedule your service appointment today and keep those winter chills at bay!