Jayco North Point – Furnace Igniter & Control Board Replacement

Most RV owners let their furnace fail completely before they touch it—and by then, the damage has spread to parts they didn’t know were connected. The Jayco North Point’s heating system is built to a price point, which means Jayco has engineered exactly where corners get cut: the igniter and control board are those corners, sitting at the intersection of heat cycling stress and electrical strain that neither component was designed to handle for a full decade of ownership. I’ve pulled apart enough of these furnaces to see the pattern clearly—a control board weakens from thermal cycling, starts sending erratic voltage to the igniter, and the igniter burns out faster than it should. Then you’re standing in a cold rig at 6 a.m. wondering whether the whole furnace is dead or just one of these two parts. Here’s the mistake: most owners replace one or the other and call it done, only to watch the remaining component fail within a season because it was never the real problem—the whole assembly was already compromised. If you’ve got a clicking furnace, a furnace that lights and dies, or a furnace that won’t light at all, this guide walks you through both repairs so you can stop the cascade before it starts.

When Patchwork Fixes Stop Working: A Complete Unit Swap

Reach a point where you’ve already swapped the igniter and the control board separately, and the heat is still dropping in and out or failing outright, and you’re looking at a deeper truth: neither part was truly the culprit on its own—the furnace as a whole has exhausted its service life. A full furnace replacement is the only answer that actually holds, particularly on earlier-generation North Points running the original Atwood hardware that’s been thermally cycled through too many seasons to stay reliable piecemeal.

Parts and Tools

• Replacement igniter assembly matched to your Jayco North Point furnace model (typically a hot-surface igniter rated for your specific Suburban or Atwood unit)
• Replacement control board (circuit board) for your furnace model, with voltage and connector type matching the original
• Needle-nose pliers and small flathead screwdriver for disconnecting wire terminals and removing fasteners inside the furnace housing
• Multimeter (DC voltage setting) to test igniter continuity and control board output before and after replacement
• Propane leak detector solution (soapy water) to verify no gas leaks after reassembly
• Camera or phone to photograph wire routing and connector positions before disconnecting anything

Step-by-Step Instructions

Step 1: Isolate propane and 12V power to the furnace

Turn off the propane supply at the tank valve. Switch off the furnace breaker on your 12V DC panel inside the rig. Wait five minutes to allow any residual gas in the lines to dissipate. Do not proceed until both supplies are confirmed off—propane leaks and electrical shorts during this work create serious hazards. If your furnace has a manual gas shutoff valve near the unit itself, close that as well.

Step 2: Access the furnace and photograph the existing setup

Locate your furnace (usually mounted low in a cabinet or under a bed in the North Point). Remove the access panel or cover—typically held by two to four screws. Take clear photos of the wire routing, connector positions, and how the igniter and control board sit in the housing before touching anything. Note which wires connect where. This photo becomes your reassembly map.

Step 3: Test the igniter and control board to confirm failure

Set your multimeter to DC voltage. With the furnace isolated, touch the meter probes to the igniter terminals—a working igniter shows continuity (low resistance). If the igniter is open-circuit (infinite resistance), it’s dead. Next, check the control board by looking for visible burn marks, cracked solder joints, or discolored components. If the board looks intact but the igniter failed, the board likely sent bad voltage to it. If both show damage, replace both now rather than chasing the problem later.

Step 4: Disconnect and remove the old igniter

Locate the igniter terminals (usually two spade connectors or a plug). Photograph the exact wire positions, then disconnect them using needle-nose pliers—gently pull the female connector off the male terminal. Unbolt the igniter mounting bracket (typically one or two small bolts). Slide the old igniter out of its holder. Do not force it; if it’s stuck, check that all fasteners are removed. Set the old part aside.

Step 5: Disconnect and remove the old control board

Trace all wires connected to the control board—usually four to six terminals. Photograph each connection before disconnecting. Use the needle-nose pliers to gently remove each spade connector. Unbolt the board from its mounting bracket (typically two to four screws). Slide the board out carefully. Inspect the mounting area for debris or corrosion; clean it lightly with a dry cloth if needed.

Step 6: Install the new control board and igniter

Position the new control board in the original mounting location and secure it with the original bolts—do not over-tighten. Reconnect each wire to its terminal using your photos as a guide; push the female connectors firmly onto the male terminals until they click or seat fully. Install the new igniter in its bracket and bolt it down. Double-check every connection matches your reference photos. Ensure no wires are pinched or touching metal edges.

Step 7: Reassemble, restore power, and test for leaks and ignition

Replace the furnace access panel and secure it with screws. Turn the propane supply back on at the tank. Switch the furnace breaker back on. Set your thermostat to heat and listen for the igniter to click and glow (you may see a faint red glow through the access panel). The burner should light within 10–15 seconds. If it does, let it run for two minutes, then turn it off. Spray soapy water around all propane connections and the furnace seams—no bubbles means no leaks. If the furnace does not light, turn everything off and recheck every wire connection against your photos.

What works

• Matches the factory furnace’s footprint and connection layout precisely, so installation involves no custom brackets, no ductwork rework, and no propane line modifications.
• Sidesteps the entire diagnostic rabbit hole; you aren’t testing thermostats and thermocouples and glow plugs across a chain of five components anymore.
• Atwood and Suburban furnaces share core architecture and parts genealogy, which means your spare parts sourcing and technical documentation stay straightforward long-term.

What doesn’t

• You’re making a complete financial commitment instead of investing in a single $40 component, and both the unit cost and labor hours add up quickly.
• Your propane supply line and ductwork connections may show their age during this job—corrosion, brittleness, or separation—and any deterioration means you’re funding extra work beyond the furnace replacement itself.

I almost talked myself into one more igniter replacement in the middle of November, standing in the cold compartment with a multimeter, before admitting the furnace was just too tired to keep patching. Suburban/Atwood RV furnace replacement unit