JupiterHeating.com

Directory: Catalog > Water Heaters > A.O. Smith > Parts

Parts List: A.O. Smith GB-750, GW-750; Series 400 / 401 / 402 / 403

  • 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.

 

Item Description GB/GW-750
Series 400/101/402/403
10 Panel - Right Combustion 211914 (new # 100063550)
13A Burner Assembly 211941 (new # 100111824)
13B Burner Assembly 211941-14 (new # 100111824)
15 User Interface Module 211762 (new # 100111940)
19 Flame Sensor 192682 (new # 100109908)
20 Ignitor 192334 (new # 100110899)
31 Transformer 210449 (new # 100111982)
33 Gasket (qty. 2) 192780 (new # 100050950)
43 Plate - Sight Glass 210166 (new # 100110682)
46 Flow Switch Conduit Assembly 210179-3 (new # 100060718)
47 Inlet Temp. Conduit Assembly 210180 (new # 100110731)
48 ECO/Outlet Temp. Conduit Assembly 210181 (new # 100110727)
49 Switch - Rocker 191665 (new # 100109882)
50 Junction Box 93558 (new # 100110255)
55 Port - Observation (qty. 2) 191572-1 (new # 100049890)
60 Flow Switch 211480 (new # 100110588)
65 Nipple - Pipe 3/4 in. x 3 in. (Brass) 20373-2 (new # 100006024)
67 Elbow - 3/4 in. 90 (Brass) (qty. 2) 191664 (new # 100049989)
69 Pressure Relief Valve (GB model) 210451 (new # 100111921)
73 Flame Control Board 211759 (new # 100111256)
75 Power Distribution Board 211760 (new # 100111904)
76 Tubing - Silicone Rubber 210209-094 (new # 100111278)
78 Blocked Outlet Pressure Switch 210908 (new # 100110973)
80 Central Control Board 211758 (new # 100111255)
81 Gas Valve - Natural Gas (750 models only) 191956-2 (new # 100109890)
81 Gas Valve - Propane (750 models only) 191956-1 (new # 100109889)
81 Gas Valve - Propane 192454-1 (new # 100109958)
84 Feed Header 192767-2 (new # 100050928)
85 Return Header 192766-1 (new # 100050923)
86 120V Relay 211546 (new # 100111329)
88 Low Gas Pressure Switch - Natural Gas 191149-1 (new # 100109151)
88 Low Gas Pressure Switch - Propane 191149-3 (new # 100109151)
89 High Gas Pressure Switch - Natural Gas N/A
89 High Gas Pressure Switch - Propane 192527 (new # 100109901)
90 Standard Pump (GW models) 210263 (new # 100060844)
92 Tank Temperature Kit (GW models) 210324 (new # 100109985)
93 Communication Harness Assembly 211953-1 (new # 100063642)
94 Burner Gasket 210476 (new # 100110705) (qty. 15)
99 Orifice - Natural Gas N/A
99 Orifice - Propane 210880-48 (new # 100061661) (qty. 15)
NOTES:
- The manufacturer may change part numbers and availability at any time.

 

 

 

 

 

Board Components:

Item Description GW-750, GB-750
109 Communication Harness Assembly - CCB J20 & J21 (qty. 2) 211953-1 (new # 100063642)
123 Harness - 24 VAC Output - CCB J4 211951 (new # 100063640)
NOTES:
- The manufacturer may change part numbers and availability at any time.

 

 

Download original AO Smith Parts List
(Use the back arrow to return to this page, or open the PDF in a new tab.)