Electrical Parts

Find RV Furnace Sail Switches and Electrical Components for Reliable Heating

Ensure your RV heating system stays safe and efficient with our wide selection of RV furnace electrical repair parts. From Dometic and Atwood sail switches to Suburban limit switches and replacement thermostats, these parts help detect airflow, regulate temperature, and prevent overheating. Whether you're troubleshooting a faulty furnace or upgrading controls, we carry the exact parts you need to restore heat to your motorhome or travel trailer.

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  • White Rogers Heat Only with Night Off Thermostat
    Item #: 51039
    $29.76
    5+ In Stock
  • White Rogers Heat Only Thermostat
    Item #: 51041
    $25.74
    5+ In Stock
  • Suburban 230575 Furnace Fan Switch
    Item #: 51047
    $26.23
    5+ In Stock
  • Suburban 233484 Furnace Limit Switch
    Item #: 49419
    $11.53
    In Stock
  • Suburban 231898 Furnace Single Probe Electrode before Serial 921403846
    Item #: 51097
    $18.86
    5+ In Stock
  • Suburban 232286 Furnace Single Probe Igniter Electrode
    Item #: 49662
    $28.33
    5+ In Stock
  • Suburban 230496 Furnace Limit Switch
    Item #: 51051
    $19.65
    5+ In Stock
  • Suburban 230509 Furnace Microswitch Sail Switch
    Item #: 51054
    $14.12
    5+ In Stock
  • Suburban 230825 Furnace Limit Switch
    Item #: 50053
    $12.96
    5+ In Stock
  • Suburban 230956 Furnace Dual Probe Electrode
    Item #: 51065
    $16.78
    5+ In Stock
  • Suburban 232261 Furnace Sail Switch
    Item #: 49331
    $11.69
    5+ In Stock
  • Suburban 231933 Furnace Single Probe Electrode
    Item #: 51080
    $16.78
    Out of Stock
  • Suburban 231931 Furnace Single Probe Electrode Assembly
    Item #: 49352
    $9.72
    5+ In Stock
  • Suburban 232503 Furnace Limit Switch
    Item #: 51140
    $13.83
    5+ In Stock
  • Suburban 230849 Furnace Limit Switch
    Item #: 49420
    $14.67
    5+ In Stock
  • Suburban 525028 NT-12/16/20 Furnace Sail Switch
    Item #: 88050
    $17.83
    5+ In Stock
  • Atwood 37021 Furnace Hydro Flame 170 Limit Switch
    Item #: 50876
    $21.25
    5+ In Stock
  • Dometic Atwood 15 Amp Furnace Circuit Breaker
    Item #: 97032
    $19.73
    5+ In Stock
  • Suburban Furnace 233484 Limit Switch
    Item #: 97825
    $11.21
    5+ In Stock
  • Dinosaur Electric Time Delay Relay
    Item #: 96888
    $54.59
    5+ In Stock
  • Coleman Single Stage Heat/Cool Wall Thermostat
    Item #: 98688
    $76.06
    ONLY 3 LEFT!
  • Atwood 31092 Furnace Power Switch Replacement
    Item #: 98806
    $16.22
    5+ In Stock
  • Dometic AC to DC Furnace Transformer
    Item #: 99037
    $73.48
    5+ In Stock
  • MC Enterprises Suburban Furnace Limit Switch
    Item #: 99489
    $15.73
    5+ In Stock

Upgrade or Repair Your RV Furnace with Trusted Electrical Parts

Maintain safe and effective heating in your camper or RV with high-quality electrical furnace parts. We offer Dometic, Suburban, and Atwood furnace sail switches, thermostats, limit switches, igniters, and transformer kits—all designed to restore or improve your furnace’s performance. Whether you're a full-time RVer or a weekend traveler, keeping your heater functional is key to comfort and safety on the road.

Frequently Asked Questions

What is a sail switch in an RV furnace?

A sail switch is a safety device that detects airflow from the blower motor. If airflow is inadequate, the switch prevents the furnace from igniting, avoiding potential hazards.

How do I know if my RV furnace sail switch needs replacement?

If your furnace won't ignite or starts and shuts off quickly, a faulty sail switch may be the cause. Visual inspection or continuity testing can confirm the issue.

Are Suburban and Dometic sail switches interchangeable?

No, sail switches are brand- and model-specific. Always match the part number or consult your furnace’s manual to ensure compatibility.

What tools are needed to replace a sail switch?

You’ll typically need a screwdriver, multimeter, and possibly crimp connectors. Always disconnect power and gas before beginning any repair.

What is the difference between a sail switch and a limit switch?

A sail switch detects airflow before ignition, while a limit switch monitors temperature and shuts off the furnace if it overheats. Both are crucial for furnace safety.

How often should RV furnace electrical parts be inspected?

It’s recommended to inspect the furnace and its components at least once a year, especially before winter travel or extended trips.

Can I install an RV thermostat replacement myself?

Yes, many thermostats are simple to replace, especially wall-mounted models. Just be sure to follow wiring diagrams and installation instructions carefully.

Where can I find a Dometic furnace sail switch replacement?

You can find genuine Dometic furnace sail switch replacements right here in our Electrical Parts section, matched by model number.

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