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Parts List: A.O. Smith LB-1000, LW-1000; 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-1000
Series 400/401
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.
+ Not Illustrated

 

 

Exhaust, Drain & Water Inlet Assembly Parts List:

Item Description LB/LW-1000
15 Pump Assembly, Circulator (LW models) 211538 (new # 100112571)
NOTES:
- The manufacturer may change part numbers and availability at any time.

 

 

Jacket/Frame Assembly:

Item Description LB/LW-1000
23 Switch, Blower Motor 191666 (new # 100110729)
25 Switch, Rocker 191665-1 (new # 100109882)
  Transformer 100VA 210449 (new # 100111982)
31 Switch, Relay 211546 (new # 100111329)
NOTES:
- The manufacturer may change part numbers and availability at any time.

 

 

Natural Gas Train.Blower Assembly Model 1000:

Item Description LB/LW-1000
1 Blower 192195 (new # 100110438)
27 Port, Observation Lower 191572 (new # 100049889)
33 Switch, Low Pressure 191149-1 (new # 100109151)
41 Valve, Main Gas 78481-3 (new # 100110223)
NOTES:
- The manufacturer may change part numbers and availability at any time.

 

 

 

 

 

Propane Gas Train Assembly - Model 1000:

Item Description LB/LW-1000
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 1000:

Item Description LB/LW-1000
5 Relief Valve:  
  - LW Model  
  - LB Model 210451-2 (new # 100111923)
NOTES:
- The manufacturer may change part numbers and availability at any time.

 

 

 

 

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.

 

 

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