Atwood GC102 Ten-Gallon Gas/Electric Pilot Heater Parts Diagrams
The GC102 original diagrams cover the ten-gallon pilot burner and tank, a short electric service section, and a separate 110-volt heating-component reference. Components in these distinct drawings must be identified by their callout, not by resemblance to the GC101 or GC102P versions.
Reading this diagram: Match the diagram callout and Atwood part number to the original component. Check the water-heater model and production revision, and confirm any superseded number before ordering.
GC102: Pilot gas and tank assembly
| Ref. | Manufacturer # | Qty | Original part description |
|---|---|---|---|
| 1 | 90960 | 1 | Flue Box Assembly |
| 2 | 92640 | 1 | Grille Only, New Style Door |
| 3 | 91602 | 1 | Robertshaw T-Stat, 3/8 Npt X 3/8 Npt |
| 4 | 91601 | 1 | White Rodgers T-Stat Use 91602 |
| 5 | 91044 | 1 | Elbow 45 Degree 3/8 X 3/8 |
| 5 | 91347 | 1 | Elbow 1/4 Npt X 3/8 Flair |
| 6 | 93221 | 1 | Main Burner |
| 7 | 93914 | 1 | Main Burner Orifice Use 93915 |
| 7 | 93915 | 1 | Main Burner Orifice |
| 8 | 91441 | 1 | Elbow, 90 Degree 3/8 X 3/8 |
| 9 | 92616 | 1 | Pilot Assembly Use 91603 |
| 9 | 91603 | 1 | Jade Pilot Assy. |
| 10 | 91858 | 1 | Door Hardware Kit |
| 11 | 93986 | 1 | Door W/Grill - Pol. White 10 Gal |
| 11 | 93993 | 1 | Door W/Grill - Col. White 10 Gal |
| 12 | 91928 | 1 | Set Of 4 Corner Brackets |
| 13 | 91561 | 1 | Plug,Drain 1/2 Use 91857 |
| 13 | 91857 | 1 | Drain Plug, 1/2 In. 2 Pack |
| 14 | 92698 | 1 | Petcock Drain Valve 1/8 In |
| 15 | 93804 | 1 | Electrode W/L Plate |
| 16 | 93801 | 1 | Ignition Module - Not Used On This Model |
| 17 | 93803 | 1 | Harness, Wiring - Not Used On This Model |
| 18 | 96010 | 1 | Ring & Gasket - Not Used On This Model |
| 19 | 93935 | 1 | Drawn Pan 10 Gallon Pilot |
| 20 | 91604 | 1 | Pressure Relief Valve, 1/2 Npt 150 Psi |
| 21 | 91238 | 1 | Tank Cover-Bottom-10 Gal Use 93610 |
| 21 | 91239 | 1 | Tank Cover-Upper-10 Gal Use 93610 |
| 21 | 93610 | 1 | Shroud Kit, 10 Gal |
| NS | 91285 | 1 | Jade Orifice Fits #91603 Pilot |
| NS | 91596 | 1 | Inner Tank |
| NS | 92610 | 1 | Rubber Grommet, Gas Line |
GC102: Electric switch service list
| Ref. | Manufacturer # | Qty | Original part description |
|---|---|---|---|
| 28 | 91116 | 1 | On/Off Switch & Junction Box - Not Used On This Model |
| 29 | 91160 | 1 | Element Use 92249 |
| 29 | 92249 | 1 | Element & Gasket Kit - 110v (Screw In) - NLA |
| 30 | 91873 | 1 | T-Stat & ECO 120 VAC |
GC102: 110-volt heater and ECO components
| Ref. | Manufacturer # | Qty | Original part description |
|---|---|---|---|
| 22 | 91182 | 1 | Box, Junction W/On/Off Switch - Not Used On This Model |
| 23 | 91097 | 1 | Element,Heating 110v Use 91580 |
| 23 | 93089 | 1 | Element,Heating Use 91580 |
| 23 | 91580 | 1 | 110 VAC Bolt-On Element - 1500w |
| 24 | 91951 | 1 | Switch/ECO Use 92942 |
| 24 | 92942 | 1 | Switch, ECO Use 90037 |
| 24 | 90037 | 1 | T-Stat Kit 110v |
| 25 | 92943 | 1 | Thermostat 140 Degree |
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