How to Light an RV Furnace Pilot Light?
Overview
Lights, camera, action! When it comes to troubleshooting an RV furnace pilot light, it can be an intimidating task for many motorhome enthusiasts. However, with the right guidance and a few simple steps, you can safely and confidently relight the pilot flame and get your RV warming up in no time! In this article, we’ll provide you with the step-by-step guide to lighting an RV furnace pilot light, from identifying issues to relighting the flames.
Symptoms to Identify
Before we get started, let’s familiarize ourselves with the warning signs that the pilot light may not be functioning as it should.
- Weak or flickering flame: If the flame is yellow or flickers, it may indicate low gas flow or blockage.
- No flame: If you don’t see any smoke or flames emanating from the pilot light, you may need to relight it.
- Furnace not turning on: An unlit pilot light usually means the furnace won’t turn on or produce warmth.
What You Need to Know Before Relighting
Before relighting, make sure to:
- Consult your manual: Check the owner’s manual for your specific furnace model and ensure you are following the proper procedures to relight the pilot flame.
- Prevent Carbon Monoxide: Ensure good ventilation in the RV by opening windows (if possible) or fans to prevent any potential hazards.
- Safely Prepare: Move any flammable materials like curtains, clothing, and bedding away from the furnace; and keep electronic devices a safe distance.
- Wear protective eyewear: A pair of safety glasses can protect you from any splashes, sparks, or debris created during the process.
Contents
Steps to Follow
Step 1: Cut Off the Main Gas Shut-Off
- Locate the control valve: usually found below the furnace unit or the main gas supply line outside the RV.
- Turn it clockwise to shut off gas: About 1/4 or 1/2 a turn in a clockwise direction should cutoff the main gas supply, ensuring a safer relight process.
| Positions | |
| B | Main valve open, letting gas supply the furnace. |
| A | Main valve closed and locked in a safe OFF position. |
Step 2: Light the Pilot Light using the Glowbar
Now it’s time to try and relight the pilot flame!
Using an RV Furnace GlowBar:
- Extinguish the pilot tip: Using your thumb and index finger, press or pinch the tip of the pilot flame.
- Hold the GlowBar upright and parallel to the pilot burner.
- Take a photo of the spark: Some GlowBars take a step further by storing the thermal energy in a sensor, emitting a flash after the flash has been seen. Some GlowBars include a remote control.
- Locate the spark spot on your pilot burner
Initial Ignition Issues: Potential Causes and Remedies
| Causes | Symptom | Troubleshoot |
|---|---|---|
| Low gas | Weak light | Check & adjust airflow, ensure sufficient gas supplies |
| Old or rusted | Clogged passage | Clean passage, verify gas line tightness; replace if old |
| Incorrect spark | Initial failure | Calibrate GLOWBAR with the suggested spark angle |
| Impurities | Poor initial light | Perform pilot-light cleaning & gas line drying |
The Final Leg: Verifying the Lit Pilot Light and Reinitializing the Main Gas Source
- Check the light is stable: A sturdy, blue-white flame often indicates proper airflow and burner cleanliness.
- Switch the main valve back, counterclockwise this time, until you hit the valve ‘B.’ This allows the furnace access to the full gas pressure.
In Conclusion…
Lighting an RV furnace pilot light requires attentive steps and cautious attention; however, being prepared should alleviate most obstacles. A well-lit pilot lights the way towards a safely warmed RV retreat. While this article presents a logical sequence, you should:
- Always follow your personal RV manual,
- Utilize caution around gas devices,
- Adhere to manufacturer’s suggestions,
- For pilot light replacements, refer to the applicable manufacturer guidelines.
