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Directory: Catalog > Water
Heaters > A.O. Smith > Parts
Parts List: A.O. Smith LB-1000, LW-1000, Series 300/301
- 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 and Combustion Chamber Parts List:
| Item |
Description |
LB/LW-1000
Series 300/301 |
| 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) |
| 22 |
Switch, Safety Flow |
211480 (new # 100110588) |
NOTES:
- The manufacturer may change part numbers and availability at any time. |
Exhaust, Drain and Water Inlet Assembly Parts List:
| Item |
Description |
LB/LW-1000
Series 300/301 |
| 15 |
Pump Assembly, Circulator (LW Models) |
211538 (new # 100112571) |
Jacket/Frame Assembly:
| Item |
Description |
LB/LW-1000
Series 300/301 |
| 23 |
Switch, Blower Prover |
191666 (new # 100110729) |
| 25 |
Switch, Rocker |
191665-1 (new # 100109882) |
| 27 |
Transformer (100VA) |
210449 (new # 100111982) |
| 31 |
Switch, Relay |
211546 (new # 100111329) |
Train/Blower Assembly, Natural Gas:
| Item |
Description |
LB/LW-1000
Series 300/301 |
| 1 |
Blower |
192195 (new # 100110438) |
| 27 |
Port, Obersvation Lower |
191572 (new # 100049889) |
| 33 |
Switch, Low Pressure |
191149-1 (new # 100109151) |
| 41 |
Valve, Main Gas |
78481-3 (new # 100110223) |
Train Assembly, Propane:
| Item |
Description |
LB/LW-1000 |
| 5 |
Switch, Low Gas Pressure |
191149-3 (new # 100109151) |
By-Pass Parts List:
| Item |
Description |
LB/LW-1000 |
| 5 |
Relief Valve - LB Model |
210451-2 (new # 100111923) |
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Control Board, Wiring and Harness Assemblies:
| Description |
Part # |
| Transformer Harness Assembly, Model 1000) |
210578 (new # 100109200) |
| Outlet Temperature Control / ECO Assembly |
210572 (new # 100110742) |
| Tank Probe (LW Models) |
211541-1 (new # 100109985) |
| Inlet Temperature Control Assembly |
210571 (new # 100110747) |
| - Use dash number to indicate length of wire. For example, 20 in. red wire would be 170603-20. |
Download original AO Smith Parts List
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