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MC 31093MC RV Furnace Air Flow Sail Switch for Atwood Dometic

Manufacturer

MC

<h3>About MC Enterprises</h3><p>MC Enterprises, based in Camarillo, California, has built a well-earned reputation as a trusted source for after-warranty recreational vehicle appliance replacement parts. For decades, the brand has served RV owners, mobile repair technicians, and dealerships who need reliable, cost-effective alternatives to expensive OEM components without sacrificing quality or fit.</p><p>The company focuses specifically on the appliance systems that keep RVs comfortable and functional — furnaces, refrigerators, water heaters, and HVAC systems. By sourcing components that meet strict federal and state manufacturing regulations, MC Enterprises ensures that each part delivers the dependability customers expect from a direct OEM replacement, often at a meaningfully lower cost.</p><h3>A Specialty Built Around RV Comfort Systems</h3><p>RV appliances endure unique stresses — constant vibration, temperature extremes, and the rigors of life on the road. When a furnace stops pushing warm air or an HVAC system loses its ability to regulate the cabin environment, the problem often traces back to a single component. MC Enterprises has made it their mission to stock precisely those parts.</p><p>Among their most sought-after products are <a href="/5807-mc-hvac-blower-motor-6916">HVAC blower motors</a>, which are critical to the operation of RV furnaces from leading OEM brands like Atwood, Suburban, and Dometic. These motors power the blower wheel and combustion air wheel inside the furnace, and MC Enterprises offers a wide range of replacement options to match specific furnace models with precision.</p><p>Beyond motors, MC Enterprises also supplies the electronic and thermostatic controls that govern how RV climate systems operate. Their <a href="/5807-mc-hvac-control-module-47959">HVAC control modules</a> — including thermostat control assemblies and related switching components — are engineered to serve as drop-in replacements for Dometic and Suburban units, making repairs straightforward for technicians and confident DIYers alike.</p><p>For water system needs, MC Enterprises extends its coverage to engine water pump and water heater components, reflecting the brand's broader commitment to keeping every major system aboard an RV in working order.</p><h3>Why Choose MC Enterprises?</h3><ul style="list-style:disc"><li><strong>After-warranty focus:</strong> Designed specifically for out-of-warranty vehicles where OEM support may no longer be available</li><li><strong>Broad compatibility:</strong> Parts cover major RV appliance brands including Dometic, Atwood, Suburban, Norcold, and Hydro Flame</li><li><strong>Quality assurance:</strong> Products are manufactured in compliance with applicable federal and state regulations</li><li><strong>One-year guarantee:</strong> All MC Enterprises parts are backed by a one-year guarantee from date of purchase</li><li><strong>Value pricing:</strong> Replacement parts are typically priced well below the original equipment manufacturer&apos;s cost</li></ul><p>Whether you&apos;re a full-time RVer, a weekend adventurer, or a professional RV technician, MC Enterprises provides the confidence of a quality replacement part with the convenience of broad model coverage across the most common RV appliance platforms.</p>

Part Number

31093MC
09/12/2036 5:31 AM
Sale Price

$25.29

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The MC 31093MC is a replacement sail switch designed for select Atwood AFS and AFM Series furnaces. This sail switch functions as an air proving device and critical safety component that prevents ignition until it detects 75% of the motor's RPM, ensuring the combustion wheel rotates fast enough to create a proper air and gas mixture for smooth ignition.

Key Features:

  • Electrical Rating: 0.1A 125/250VAC
  • Aftermarket replacement by MC Enterprise for OEM part 31093
  • When the paddle is depressed, continuity is maintained through the switch
  • Must be replaced with exact same size for proper operation

Compatibility:

Compatible with Dometic Atwood furnaces with serial numbers BEFORE 72498929, including models: AFSAD12111, AFSAD12121, AFSAD12131, AFSAD12141, AFSD12111, AFSD12121, AFSD12131, AFSD12141, AFSD16111, AFSD16121, AFSD16131, AFSD16141, AFSD20111, AFSD20121, AFSD20131, AFSD20141, AFMD16111, AFMD16121, AFMD16131, AFMD16141, AFMD16151, AFMD20111, AFMD20121, AFMD20131, AFMD20141, AFMD20151.

Troubleshooting:

The most common problems with sail switches include bent paddles, loose wire connections, or obstructions between the paddle and switch contact. Test for proper operation by checking for continuity when the paddle is depressed.

Received the order in a timely manner and worked perfectly

Best deal on line quick and easy

it&#039;ll be a 5 star when i have the product

Excellent service good prices thanks

Great Company to deal with , fast shipping , great prices , will buy from again A+++++++++++++++++

Best price on this item despite trouble with the website

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