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Parts List: A.O. Smith GB-300, GW-300; Series 300, 301, 302, 303

  • 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-300
Series 300/301/302/303
13A Burner Assembly 211941 (new # 100111824)
15 User Interface Module 211762 (new # 100111940)
19 Flame Sensor 192682 (new # 100109908)
20 Ignitor 212005 (new # 100111087)
31 Transformer 210449 (new # 100111982)
32 Blower / Shutter Assembly 210884-1 (new # 100111836)
46 Flow Switch Conduit Assembly 210179-1 (new # 100060716)
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)
60 Flow Switch 211480 (new # 100110588)
65 Nipple - Pipe 3/4 in. x 3 in. (Brass) 20373-2 (new # 100006024)
69 Pressure Relief Valve (GB only) 210451 (new # 100111921)
73 Flame Control Board 211759 (new # 100111256)
75 Power Distribution Board 211760 (new # 100111904)
78 Blocked Outlet Pressure Switch 210908 (new # 100110973)
80 Central Control Board 211758 (new # 100111255)
81 Gas Valve - Propane 192454-1 (new # 100109958) (qty. 2)
84 Feed Header - Bronze 192767-1 (new # 100050926)
85 Return Header - Bronze 192766-1 (new # 100050923)
92 Tank Pressure Kit (GW Models) 210324 (new # 100109985)
98 Orifice - Natural Gas N/A
98 Orifice - Propane 210880-48 (new # 100061661) (qty. 6)
NOTES:
- The manufacturer may change part numbers and availability at any time.

 

 

 

 

 

Flame Control Board:

Item Description GW-300 or GB-300
123 Harness - 24 VAC Output CCB J4 (LWCO/LO Gas Hi Gas / IRI/ALARM) 211951 (new # 100063640)
NOTES:
- The manufacturer may change part numbers and availability at any time.

 

 

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