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Directory: Catalog > Water
Heaters > A.O. Smith > Parts
Parts List: A.O. Smith LB-750, LW-750; Series 920/951
- 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.
By-Pass Kit Parts List:
| Item |
Description |
LW/LB-750
Series 920, 951 |
| 3 |
Relief Valve: |
|
| |
- LW Models |
|
| |
- LB Models |
98883-2 (new # 100111923) |
| 9+ |
Control, Tank Temperature (LW Models) |
099058-1 (new # 1001107405) |
NOTES:
- The manufacturer may change part numbers and availability at any time.
+ Not shown
** On LB models the circulating pump must be installed between the boiler inlet and the bypass. LW models have the pump mounted inside the jacket.
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Parts List A:
| Item |
Description |
LB/LW-750 |
| 8 |
Coupling, Flexible with Gasket |
191780 (new # 100050119) |
| 14 |
Igniter |
191526 (new # 100110899) |
| 21 |
Spacer, Ring |
191554 (new # 100049869) |
| 22 |
Switch, Safety Flow |
78168 (new # 100110588) |
NOTES:
- The manufacturer may change part numbers and availability at any time. |
Parts List B:
| Item |
Description |
LB/LW-750 |
| 26 |
Relay, Blower Speed |
191661 (new # 100109880) |
| 29 |
Switch, Rocker |
191665 (new # 100109882) |
NOTES:
- The manufacturer may change part numbers and availability at any time. |
Parts List C:
| Item |
Description |
LB/LW-750 |
| 20 |
Tubing, Condensate |
191746 (new # 100109886) |
NOTES:
- The manufacturer may change part numbers and availability at any time. |
Parts List D:
| Item |
Description |
LB/LW-750 |
| 3 |
Blower Manifold Assembly |
191832 (new # 100110799) |
| 25 |
Port, Observation Lower |
191572 (new # 100049889) |
| 31 |
Switch, Low Pressure |
191149-1 (new # 100109151) |
NOTES:
- The manufacturer may change part numbers and availability at any time. |
Parts List E, LB/LW-750 Series 951 Propane:
| Item |
Description |
LB-LW-750 |
| 5 |
Switch, Low Pressure |
191149-3 (new # 100109151) |
NOTES:
- The manufacturer may change part numbers and availability at any time. |
Parts List F:
| Item |
Description |
LB/LW-750 |
| 2 |
Box, 4 in. x 4 in. Junction |
93558-4 (new # 100110255) |
| 6 |
Control, Hot Surface Ignition |
191848 (new # 100109887) |
| 28 |
Switch, Blower Prover Switch |
191666 (new # 100110729) |
NOTES:
- The manufacturer may change part numbers and availability at any time. |
Download original AO Smith Parts List
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