30268 36043 RV Burner Head & 35100 91788 Furnaces Ignitor Electrode Kit for Domestic Atwood Hydro Flame 79 85 AFS & AFM Series LPG Heaters Fireplaces Atwood RV Furnace

30268 36043 RV Burner Head & 35100 91788 Furnaces Ignitor Electrode Kit for Domestic Atwood Hydro Flame 79 85 AFS & AFM Series LPG Heaters Fireplaces Atwood RV Furnace30268 & 35100 RV Furnace Burner Head and Ignitor Electrode Kit Key Features Precision Flame Distribution: The 30268 burner head is engineered with accurately spaced combustion slots to provide an even, circular flame pattern, ensuring consistent heat transfer and preventing "hot spots" in the furnace chamber. High Temperature Alloy Construction: Manufactured from a heavy duty, heat stabilized alloy designed to withstand the rapid thermal cycling of RV

30268 & 35100 RV Furnace Burner Head and Ignitor Electrode Kit

Key Features

• Precision Flame Distribution: The 30268 burner head is engineered with accurately spaced combustion slots to provide an even, circular flame pattern, ensuring consistent heat transfer and preventing "hot spots" in the furnace chamber.
• High-Temperature Alloy Construction: Manufactured from a heavy-duty, heat-stabilized alloy designed to withstand the rapid thermal cycling of RV heating systems without warping, cracking, or corroding over time.
• Advanced Ceramic Insulation: The 35100 ignitor features a high-grade ceramic insulator that prevents electrical "leakage" or arcing to the furnace frame, ensuring the full spark energy is delivered to the gas stream.
• Dual-Probe Sensing Technology: Designed to provide both a high-voltage spark for ignition and a flame-sensing signal back to the control board, preventing the gas valve from staying open if the burner fails to light.
• Optimized LPG Combustion: Specifically calibrated for Liquid Propane (LPG) environments, the burner head’s venturi interface facilitates the correct air-to-fuel ratio for a clean, blue, soot-free flame.

Replaces / Cross-Reference Part Numbers

• Burner Head: 30268, 36043.
• Ignitor Electrode: 35100, 91788.

Compatibility & Fitment

This kit is the primary ignition and combustion set for Atwood and Dometic (Hydro Flame) RV furnaces. Key compatible series include:

• Atwood Hydro Flame 79 Series: Fits 7912, 7916, and 7920 models (including II and HF versions).
• Atwood Hydro Flame 85 Series: Compatible with 8516, 8520, 8525, 8531, and 8535 (including III and IV iterations).
• AFS & AFM Series: Direct fit for the newer Atwood Foundation Series (AFS) and Mid-Size (AFM) RV furnaces.
• Dometic Furnaces: Compatible with modern Dometic-branded units that utilize legacy Atwood internal components.
• Note: While this kit fits both 79 and 85 series, please verify the physical shape of your burner—some older 89 series units may use a larger rectangular burner.

When to Replace

• Furnace Won't Ignite: You hear the "click-click-click" of the igniter, but the burner fails to light, often due to a cracked ceramic insulator on the electrode or a clogged burner head.
• "Limit Switch" or "Ignition Lockout" Errors: The furnace tries to light three times and then shuts down; this is often caused by a dirty electrode that can no longer sense the flame.
• Sooting or Yellow Flame: Indicates the burner head slots are rusted or clogged with spider webs/debris, causing incomplete combustion and dangerous carbon monoxide buildup.
• Rumbling or Booming Sound: Delayed ignition caused by a weak spark or a rusted burner flange can lead to a small "explosion" when the gas finally ignites.
• Visible Corrosion: The burner head shows heavy rust or flakes of metal, or the electrode probe is burnt down/shortened from years of heat exposure.

Installation Tips

• Safety First (CRITICAL): Shut off the main LP gas supply and disconnect the 12V DC power to the furnace before disassembly. Gas leaks and electrical sparks are a high-risk combination.
• Check the Gap (PRO TIP): Before installing the new 35100 electrode, ensure the spark gap (the distance between the probes) is set to 1/8 inch (3.2mm). If the gap is too wide or too narrow, the furnace will not light.
• Clean the Burner Tube: While the burner head is removed, use a flexible brush or compressed air to clear the burner tube of spider webs. Spiders are attracted to the smell of propane and are the #1 cause of RV furnace failure.
• Check the Ceramic: Inspect the new electrode for any hairline cracks in the white ceramic during shipping. A cracked insulator will cause the spark to jump to the frame instead of the burner.
• The Leak Test: After reassembling the gas manifold, use a non-corrosive gas leak detection bubbles/solution on all fittings. Never use a flame to check for propane leaks.