Atwood AFMD20121 Furnace Parts Diagram & OEM Parts List
Use this Atwood AFMD20121 20,000 BTU ducted furnace (less door) parts breakdown to identify replacement ignition boards, motors, sail switches, thermostats, gas valves, blower wheels, vent kits, duct adapters and other OEM RV furnace service parts.
Looking for replacement furnace parts? Shop our RV Furnace Parts Collection for ignition boards, motors, sail switches, limit switches, gas valves, thermostats, blower wheels and more.
Need a complete replacement furnace? Browse our RV Propane Furnaces Collection featuring Atwood, Hydro Flame, Dometic and Suburban RV furnaces.
Atwood AFMD20121 Parts List
| Reference # | Mfg Part Number | Qty | Description |
|---|---|---|---|
| 1 | 30322 | 1 | CIRCUIT BREAKER, 7 AMP |
| 5 | 36688 | 1 | DUCT ADAPTER 2 INCH |
| 6 | 31474 | 1 | DUCT ADAPTER 4 INCH |
| 7 | 30205 | 1 | ADAPTER PLATE KIT, SIDE DISCH |
| 8 | 30261 | 1 | BOTTOM PLATE ADAPTER ASM. |
| 9 | 31361 | 1 | DUCT COVER PLATE, 4 INCH |
| 10 | 35100 | 1 | ELECTRODE ASM. SMALL |
| 11 | 35710 | 1 | HEAT EXCHANGER KIT, M |
| 12 | 31244 | 1 | CASING LEG |
| 13 | 35706 | 1 | GAS LINE GROMMET |
| 14 | 30268 | 1 | BURNER HEAD, LP GAS |
| 15 | 31501 | 1 | ELECTRONIC IGNITION BOARD |
| 15 | 32353 | 1 | UNIVERSAL IGNITION DC SMT |
| 16 | 35712 | 1 | MANIFOLD EXT ASM KIT, SML |
| NS | 32349 | 1 | MANIFOLD, INLET SMALL |
| 17 | 30730 | 1 | MOTOR KIT |
| 18 | 30829 | 1 | ORIFICE KIT 1.30MM LP |
| 19 | 31091 | 1 | LIMIT SWITCH, 190 DEGREE |
| 20 | 31093 | 1 | SAIL SWITCH, SMALL-WHITE - Serial# 724xxxxx and Lower |
| 20 | 33063 | 1 | SAIL SWITCH DF-BLACK - NLA - Serial# 724xxxxx and Higher |
| 21 | 32300 | 1 | THERMOSTAT, HEAT ONLY, BLACK |
| 21 | 38452 | 1 | T-STAT HEAT ONLY - BROWN |
| 21 | 38453 | 1 | THERMOSTAT HEAT ONLY - WHITE |
| 23 | 31098 | 1 | VALVE 12VDC TOP SMALL |
| 23 | 31096 | 1 | VALVE KIT, 12VDC -V1 SML |
| 25 | 30578 | 1 | VENT LD KIT, NB V3 |
| 25 | 31813 | 1 | VENT LD KIT, NB V4 |
| 27 | 32296 | 1 | VENT LD KIT, NB V4 MW |
| 29 | 30197 | 1 | VENT COVER PANEL SM V2-W |
| 29 | 30456 | 1 | VENT PANEL EXTENSION SML V3 |
| 29 | 30457 | 1 | VENT PANEL EXTENSION SML V3 |
| 30 | 30611 | 1 | VENT PANEL EXTENSION SML V4 |
| 31 | 33128 | 1 | COMBUSTION AIR WHEEL |
| 32 | 33126 | 1 | BLOWER WHEEL KIT |
| 33 | 31114 | 1 | WIRING HARNESS, DC |
| NS | 31923 | 1 | VENT PANEL EXTENSION SM V1 |
Need help finding the correct Atwood AFMD20121 furnace part?
Click any manufacturer part number above to search our inventory. If you cannot find the part you need, contact us with your furnace model number, serial number and part number.
Click any manufacturer part number above to search our inventory. If you cannot find the part you need, contact us with your furnace model number, serial number and part number.
Recently viewed
Thousands of Parts for RV, Marine, Truck & Towing
We’re continually adding and updating new and used parts across our growing online catalog.
Shop RV appliances and replacement parts, marine products, truck accessories, towing and trailer equipment, electrical and plumbing components, and more from leading brands.
Can’t find the exact part you need? Text or email with the manufacturer part number, model number, or product details and we’ll help check availability.
Our Products