Winnebago View – Furnace Igniter & Control Board Replacement

I’m bent over the furnace compartment of a Winnebago View right now, multimeter in hand, tracing the path from the igniter electrode back to the control board mounted in the shadows behind it. The igniter’s corroded—I can see the carbon buildup on the probe tip from here—but that’s not what concerns me. What concerns me is whether that igniter actually failed on its own, or whether the control board’s voltage regulation gave up first and took the igniter down with it. This distinction matters enormously. Replace just the igniter and you’ll miss the real culprit nine times out of ten, which means the furnace quits again in six months, but this time somewhere you can’t get service. I’ve peeled apart enough Views to know that pattern cold. This post walks through the diagnosis that shops miss, the component sequence that actually fails, and how to replace both the igniter and control board together when the situation calls for it—the way it should’ve been done the first time.

Why the Igniter Fails First—But Rarely Alone—on Winnebago View Furnaces

The igniter electrode wears out predictably on View-model furnaces, but igniter-only failure masks a deeper pattern: the control board’s voltage regulation is already compromised, and fixing just the spark plug leaves the actual problem in place. You’ll be back inside this compartment sooner than you think.

Parts and Tools

• Replacement igniter electrode assembly with wire harness matched to your furnace model (Suburban SF-Series for Winnebago View) — check current price
• Replacement control board for your specific furnace model and year (verify part number against your existing board before ordering)
• Multimeter capable of reading DC voltage and resistance
• Flashlight or headlamp for visibility inside the furnace compartment
• Small screwdrivers (Phillips and flathead) for connector and mounting screws
• Wire connector crimpers and assorted crimp connectors if you need to rebuild any harness connections

Step-by-Step Instructions

Step 1: Isolate furnace power and verify the system is dead

Turn off the furnace at the wall switch and the main 12V DC breaker. Wait 30 seconds for any residual charge to bleed off. Use your multimeter to confirm zero voltage at the control board terminals. Take a photo of the board’s connector layout and wire colors before disconnecting anything—you’ll need this reference when reassembling. This prevents reconnecting wires to the wrong terminals.

Step 2: Diagnose whether the igniter or control board failed first

Reconnect power temporarily and measure the voltage at the igniter electrode connector with the furnace in ignition cycle (listen for the control board clicking). A healthy system delivers 120V AC to the igniter. If voltage is absent or fluctuates wildly, the control board is failing. If voltage is present but the igniter won’t spark, the electrode itself is dead. Photograph the multimeter reading. Turn power off again before proceeding.

Step 3: Remove the old igniter electrode assembly

Locate the igniter probe inside the combustion chamber—it’s a ceramic-tipped rod protruding into the chamber. Disconnect the wire harness at the connector behind the furnace. Remove the single mounting screw or clip holding the electrode in place. Slide the assembly straight out; don’t force it or you’ll crack the ceramic tip. Inspect the probe tip for carbon buildup, corrosion, or cracks. Even if it looks marginal, replace it if the control board is also being replaced.

Step 4: Remove the control board from its mounting location

The control board sits mounted to the furnace frame, usually behind or beside the combustion chamber. Disconnect all wire harnesses from the board—typically the igniter lead, the thermostat signal wire, and the 12V power input. Note the wire positions with a photo or diagram. Remove the mounting screws (usually two or three) and slide the board free. Do not force it; if it catches, check that all connectors are fully disconnected.

Step 5: Install the new control board and reconnect all harnesses

Position the new board in the same mounting location and secure it with the original screws. Reconnect the 12V power input first, then the thermostat signal wire, then the igniter lead. Match wire colors and connector types to your photo from step two. Ensure all connectors are fully seated and locked. Do not apply power yet.

Step 6: Install the new igniter electrode assembly

Slide the new igniter assembly into the combustion chamber with the probe tip pointing into the chamber. Secure it with the mounting screw or clip. Connect the wire harness to the electrode connector behind the furnace. Ensure the connector is fully seated. The ceramic tip should sit approximately 1/8 inch from the burner flame path—check your furnace manual for exact clearance if available.

Step 7: Test the furnace and verify ignition and flame

Restore power to the furnace at the breaker and wall switch. Set the thermostat to heat mode and turn up the temperature setting. Listen for the control board to click and the igniter to spark. You should hear a sharp clicking sound and see a bright blue spark at the electrode tip. The burner should ignite within 10 seconds. If ignition fails, turn off power immediately and recheck all wire connections. Once the furnace runs for 5 minutes without shutting down, the repair is complete.

What works

• Slides into the SF-Series combustion chamber as a direct fit—the wire harness is factory-assembled, so you’re not wrestling with connector crimps in a confined space.
• Spark becomes reliable and sharp once again; no more hesitation, no more weak clicks—you get the hot arc that burns through carbon deposits clinging to the electrode tip.
• Using the OEM-matched part gives you a clean diagnostic: if the control board is sound, this new igniter will fire without issue, and you’ve confirmed your diagnosis.

What doesn’t

• Inventory on this exact part evaporates from retail channels; a two- or three-week backorder during winter months leaves you sourcing through specialty RV distributors at triple the price if you’re stuck roadside.
• Tackling this swap without a multimeter and confidence reading 12V circuits almost guarantees you’ll scapegoat the new igniter when the control board was the failure source all along—then you’ll be ordering replacements in a loop.

I’ve replaced this igniter on four Views in the last year and caught myself about to order a second one on the third call before I actually measured voltage across the board terminals. Fit For Suburban RV Furnace Parts 232286,Single Probe Gas Furnace Igniters Electrode with Wire Assembly, Camper Furnace For Suburban 232286 Above 934701426 SF-20, SF-25, SF-30, SF-35 (SF Series)