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Directory: Catalog > Water
Heaters > A.O. Smith > Parts
Parts List: A.O. Smith LB-500, LW-500; Series 400/401
- Links are included to the parts that are available to be purchased.
- Parts that are not listed in the chart are either discontinued by AO Smith or are not available for purchase.
- The item number in the first column corresponds to the location of the part in the line art drawing below the chart.
Waterways & Combustion Chamber Parts List:
Item |
Description |
LB/LW-500
Series 400/401 |
5 |
Coupling, Flexible with Gasket |
191780 (new # 100050119) |
11 |
Ignitor |
192334 (new # 100110899) |
15 |
Probe, Outlet Temp./ECO |
210572 (new # 100110742) |
16 |
Probe, Inlet Temp. |
210571 (new # 100110747) |
20 |
Sensor, Flame |
210421 (new # 100110707) |
21 |
Spacer Ring |
191554 (new # 100049869) |
22 |
Switch, Safety Flow |
211480 (new # 100110588) |
NOTES:
- The manufacturer may change part numbers and availability at any time.
+ Not Illustrated
|
Jacket/Frame Assembly:
Item |
Description |
LB/LW-500 |
23 |
Switch, Blower Motor |
191666 (new # 100110729) |
25 |
Switch, Rocker |
191665 (new # 100109882) |
NOTES:
- The manufacturer may change part numbers and availability at any time. |
Natural Gas Train / Blower Assembly - Model 500:
Item |
Description |
LB/LW-500 |
1 |
Blower |
211613 (new # 100110436) |
3 |
Blower Manifold Assembly |
191832 (new # 100110799) |
24 |
Port, Observation Lower |
191572 (new # 100049889) |
30 |
Switch, Low Pressure |
191149-1 (new # 100109151) |
NOTES:
- The manufacturer may change part numbers and availability at any time.
+ Not Illustrated
|
Propane Gas Train Assembly - Model 500:
Item |
Description |
LB/LW-500 |
1 |
Valve, Main Gas |
191956-1 (new # 100109889) |
5 |
Switch, Low Gas Pressure |
191149-3 (new # 100109151) |
NOTES:
- The manufacturer may change part numbers and availability at any time. |
Propane By-Pass Parts List Model 500:
Item |
Description |
LB/LW-500 |
3 |
Relief Valve: |
|
|
- LB Model |
210451 (new # 100111921) |
10+ |
Tube, Condensate |
191746-120 (new # 100109886) |
NOTES:
- The manufacturer may change part numbers and availability at any time.
+ Not Illustrated |
Wiring Harness Assembly:
Description |
|
Transformer Harness Assembly: |
|
- Model 1000 |
210578 (new # 100109200) |
Outlet Temperature Control / ECO Assembly |
210572 (new # 100110742) |
Tank Probe (LW Model) |
211541-1 (new # 100109985) |
Inlet Temperature Control Assembly |
210571 (new # 100110747) |
NOTES:
- The manufacturer may change part numbers and availability at any time. |
Download original AO Smith Parts List
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