My Account
Shopping Cart

Suburban Mfg 233681 RV Furnace Flame Sensor Replacement Part

Manufacturer

Suburban Mfg

<h3>Suburban Mfg: Over 75 Years of RV Comfort Innovation</h3><p><strong>Suburban Manufacturing</strong>, an <a href="/7593-suburban-mfg">Airxcel brand</a> headquartered in Dayton, Tennessee, has been one of the most recognized names in the RV industry since its founding in 1947. What began as a small gas space heater company evolved into a powerhouse of RV comfort technology — a transformation driven by a single customer request to adapt a greenhouse heater for use in a motorhome. That spark of ingenuity set Suburban on a course that would define RV living for generations.</p><p>Throughout the late 1960s and beyond, Suburban's engineers pioneered some of the most important advances in RV appliance design: space-saving, horizontally vented gas heating systems, solid-state spark ignition systems, efficient DC furnace motors, and on-demand water heating. In 1998, Suburban became part of the Airxcel family of brands — the largest privately held supplier to the RV industry — further expanding its reach and resources while maintaining its deep roots in Dayton, Tennessee, where it operates a 300,000-square-foot manufacturing facility.</p><h3>A Complete Lineup for RV Comfort</h3><p>Today, Suburban is the go-to brand for RV owners who demand reliability and performance. Their <a href="/7593-suburban-mfg-water-heaters-201162">RV water heaters</a> are among the most trusted on the market, available in propane, electric, and combination models in a range of tank sizes — including their innovative Advantage Direct Fit line designed for easy replacement. For the galley, Suburban's <a href="/7593-suburban-mfg-stoves-cooktops-201021">stoves and cooktops</a> bring thoughtful engineering to compact RV kitchens, from traditional gas ranges to modern induction cooktops with glass tops that double as extra counter space when not in use.</p><p>Behind every Suburban appliance is a robust ecosystem of <a href="/202804-heating-parts-accessories-suburban-mfg-7593">heating parts and accessories</a> — including furnace gaskets, combustion air housings, igniter electrodes, thermocouples, and circuit boards — making it easy to service and maintain Suburban systems for years to come. The brand's commitment to quality means most products undergo rigorous testing before leaving the factory, and much of the product line is backed by a 2-year limited warranty.</p><h3>Innovation That Keeps Moving Forward</h3><p>Suburban has never been content to rest on its legacy. The brand introduced glass range tops to the RV world, giving campers the flexibility of a larger working surface. More recently, they launched the RV One — a patent-pending combination water heater and furnace unit engineered specifically for compact travel trailers and lightweight RVs. This all-in-one approach exemplifies Suburban's guiding philosophy: deliver maximum comfort while respecting the space and weight constraints unique to the RV lifestyle.</p><p>Whether you're replacing an aging water heater, upgrading your cook space, or sourcing a hard-to-find furnace part, Suburban Mfg delivers the quality, innovation, and reliability that RV enthusiasts have counted on for more than seven decades.</p>

Part Number

233681
09/17/2036 7:15 AM
Sale Price

$4.53

3 left at this price

delivery box

Usually delivered within 2 days

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Suburban Mfg 233681 is an OEM replacement flame sensor designed for Suburban propane-fired RV furnaces. This critical safety component monitors burner ignition and confirms the presence of a live flame during furnace operation, allowing the control board to keep the gas valve open and maintain consistent heat output.

How It Works:

The flame sensor uses flame rectification technology — a slim metal probe positioned in the burner assembly conducts a small electrical signal back to the control module when flame is present. If the control board does not detect this signal within the ignition window, it immediately shuts off the gas valve to prevent unburned propane from accumulating, then initiates a lockout sequence for safety.

Key Features:

  • OEM Suburban Mfg replacement part — ensures precise fit and compatibility
  • Flame rectification design provides reliable, low-current flame detection
  • Signals the control board to maintain gas valve operation during normal heating cycles
  • Triggers automatic gas shutoff if flame is not detected — a critical RV safety function
  • Direct replacement for a worn, corroded, or faulty flame sensor causing short-cycling or lockout issues
  • Manufactured by Suburban Mfg, the leading brand in RV propane furnace systems

Common symptoms of a failing flame sensor include furnace short-cycling, repeated ignition lockouts, and inconsistent heat. Replacing the flame sensor with a genuine Suburban OEM part like the 233681 restores proper ignition sensing and safe furnace operation. Always turn off 12V power and propane supply before servicing.

Quick and easy with the search bar

Great price,fast shipping, no issues!!

Quick delivery and accurate order.

Great product & great price with cheap 2-day shipping. Thank you!

The only thing that didn't go very well was the time it took to receive the 2nd part of my order. I paid extra for 2 day shipping. It took closer to 6 days to receive my CDI switch box.

Great Price ! Thanks!!

Good experience

Chat answered my questions quickly

great

Share icon
Return Policy
Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy