MC Enterprises RV Furnace Parts | Sail & Limit Switch, Motor, Board

The parts that make a furnace click, blow and light. MC Enterprises builds after-warranty replacements for Atwood/Dometic Hydro Flame and Suburban furnaces: the sail switch that proves airflow before ignition, the limit switch that shuts it down if it overheats, blower motors, and the ignition boards — including a universal DSI board kit that converts older Atwood furnaces to current ignition and the Suburban 3G board with a 3-year warranty.

Options

• 31093MC — sail switch — Dometic/Atwood AFS and AFM series furnaces, replaces 31093
• 31377MC — sail switch — replaces Dometic/Atwood 31377
• 31091MC — Next Gen limit switch — Dometic 190 Series furnaces, replaces 31091
• 37021MC — limit switch — select Atwood furnaces, made in USA, replaces 37021
• 30130MC — furnace blower motor — Dometic furnaces, replaces 30130
• 30133MC — Hydro Flame furnace blower motor — select Atwood furnaces, replaces 30133 (4 lb)
• 31501MC — DSI ignition board kit with relay — universal for Atwood direct-spark furnaces (excludes 2-stage and AC models)
• 521099MC — Suburban 3G ignition control board — replaces 520820; 3-year board warranty (3 lb)

⚠️ These electrical and appliance parts are non-returnable once installed. Match the OEM part number on your existing component before ordering.

Water heater and fridge parts: MC Enterprises water heater parts, refrigerator parts.

Key Features

• Direct replacements for Atwood/Dometic and Suburban furnaces
• Sail switches verify airflow before ignition
• Limit switches protect against overheating
• Blower motors restore proper airflow
• Ignition boards bring older furnaces up to current operation

Specifications

• Brand: MC Enterprises
• Brand: MC Enterprises