• Atwood Furnace Model AFSD20121 Tune-Up Kit

    $36.69 $28.97

    Atwood Furnace Model AFSD20121 Tune-Up / Repair Kits

    Note: Older AFSD20121 furnaces used the curved blade sail switch (31094), newer AFSD20121 furnaces used the flat style blade sail switch (33082). As there is not an accurate serial number break we suggest that you determine which sail switch is applicable to your furnace as this will determine which kit you will need to order.

    Tune-Up Kit #1 Includes (links in blue):

    Item #9 Electrode Assembly (link): 35100-OS
    Item #18 Limit Switch, 190° (link): 31091-OS
    Item #19 Sail Switch (link): 31094 NLA (New P# 31094-OS)(curved blade)
    IN-STOCK

    Tune-Up Kit #2 Includes (links in blue):

    Item #12 Electrode Assembly (link): 35100-OS
    Item #28 Limit Switch, 190° (link): 31091-OS
    Item #29 Sail Switch (link): 33082-OS (New P# 36165-OS) (flat blade)
    IN-STOCK

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    Click The Down Arrow To View The Complete Parts List

    Atwood Furnace Model AFSD20121 Exploded Parts View Links
    Item#1 7 Amp Circuit Breaker (link): 30322
    Item#3 Front Grill Kit 30260
    Item#6 2 Inch Adapter Duct (link): 36688
    *Not Shown* 2 Inch Flexible Heater Duct Hose (link): E2-25
    Item#7 4 Inch Adapter Duct (link): 31474
    *Not Shown* 4 Inch Flexible Heater Duct Hose (link): E4-25
    Item#8 4 Inch Duct Cover Plate (link): 31361
    Item#9 Electrode Kit (link): 35100
    Item#9 Electrode Kit (link): 35100-OS
    Item#9 Electrode Kit (link): 35100MC
    Item#10 Heat Exchanger Kit 35711
    Item#11 Casing Leg Kit 31244
    Item#12 Gas Line Grommet (link): 35706
    Item#13 Vent Cover Panel V2-W 30197
    Item#13 Vent Cover Panel V3 30456
    Item#14 OEM Ignition Board (link): 31501
    Item#14 After-Market Ignition Board (link): 35-535811-113
    Item#14 After-Market Ignition Board (link): 30151MC
    Item#14 Dinosaur Ignition Board (link): FAN50PP
    *Not Shown* Manifold Inlet 32349
    Item#15 Manifold Extension Kit 35712
    Item#16 Blower Motor Kit (link): 30760
    Item#17 Stamp #1.25MM Orifice (link): 30789
    Item#18 Limit Switch (link): 31091
    Item#18 Limit Switch (link): 31091-OS
    Item#18 Limit Switch (link): 31091MC
    Item#19 OEM Curved Blade Sail Switch (link): 31094 NLA (Replaced By P# Link: 31094-OS)
    Item#19 Curved Blade Sail Switch (link): 31094-OS
    Item#19 Curved Blade Sail Switch (link): 31094MC
    Item#19 OEM Flat Blade Sail Switch Kit (link): 33082 (New P# 36165)
    Item#19 Flat Blade Sail Switch Kit (link): 33082-OS (New P# 36165-OS)
    Item#19 Flat Blade Sail Switch Only (link): 33063
    Item#20 Heat Only Black Thermostat (link): 32300
    Item#20 Heat Only Brown Thermostat (link): 38452 NLA
    Item#20 Heat Only White Thermostat (link): 38453
    Item#23 Gas Valve Top (link): 31098
    Item#25 LD Vent Kit V4 31269
    Item#26 Vent Kit V3 30580
    Item#26 Vent Panel Extension V4 30611
    Item#27 LD Vent Kit V4 SMW 30718
    Item#28 Blower Wheel (link): 31113
    Item#29 Combustion Wheel (link): 33128
    Item#33 Vent Panel Extension 30457
    Item#34 Wiring Harness (link): 31114
    Item#35 Burner Assembly (link): 30268
    Item#35 Burner Assembly (link): 30268-OS
    *Not Shown* Vent Panel Extension 31923
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    Available Downloads:

    Atwood AFSD20121 Mobile Service Training Manual 2015

    Atwood AFSD20121 Furnace-Installation-Manual-for-Medium-Furnaces