This GCH6A9E service listing divides the heater's gas and tank assembly from the electric parts group. It identifies original manufacturer part numbers for this GCH engine heat-exchanger configuration, but it does not provide a coolant-hose parts diagram.

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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 Check the water-heater model and production revision, and confirm any superseded number before ordering.

GCH6A9E: Six-gallon gas, tank and electronic ignition

Atwood GCH6A9E exploded water heater component and burner diagram
Illustration 1 of 2 — match each original drawing callout with its listed part number.
Ref. Manufacturer # Qty Original part description
1 90960 1 Flue Box Assembly
2 90002 1 Extended Grille-NLA
2 92640 1 Grille Only, New Style Door
3 91514 1 Door, Col. White - 6 Gal.
4A 93867 1 Board,Circuit Use 93865
4A 93865 1 Pc Board - Spade Electrode Use 91367
4A 91367 1 Pc Board W/Fuse
6 93919 1 Harness,Wire Use 93189
6 93189 1 Wiring Harness For Circuit Board
7 91044 1 Elbow 45 Degree 3/8 X 3/8
8A 93243 1 Bracket For 6 Gal Gas Valve Use 94787
8B 94787 1 Gas Valve Bracket- One Piece
8 93870 1 Valve, White Rogers Use 93844
8 93844 1 Solenoid Valve, White Rogers See Notes For Use#S
8 92078 1 Gas Valve Assembly W/Orifice 6gal
9 91563 1 Orifice Holder
10 92742 1 Main Burner Orifice Use Dometic Part# 92743
11 91638 1 Main Burner
12 91858 1 Door Hardware Kit
13 91928 1 Set Of 4 Corner Brackets
14 96010 1 Ring & Gasket
15A 91802 1 Drawn Pan, Electronic
15 92220 1 Tank Cover- Bottom Use 93100
15 92221 1 Tank Cover-Top Use 93100
NS 93100 1 Tank Cover Kit
16 91092 1 110 VAC On/Off Switch 6 Gal
28 91447 1 ECO / T-Stat Assy
29A 91561 1 Plug,Drain 1/2 Use 91857
29A 91857 1 Drain Plug, 1/2 In. 2 Pack
30 91604 1 Pressure Relief Valve, 1/2 Npt 150 Psi
31A 91859 1 Switch, On-Off, White
31A 91959 1 Switch, On-Off, Black
33 93866 1 Thermal Cut-Off 190 Degree
NS 90145 1 Fuse, 2 Amp Mini
NS 91470 1 T-Stat 130 Degree- Front Mount
NS 91592 1 Inner Tank
NS 92610 1 Rubber Grommet, Gas Line
NS 93105 1 Electronic Adj Thermostat

GCH6A9E: Electric element and control parts

Atwood GCH6A9E electric components and service reference
Illustration 2 of 2 — match each original drawing callout with its listed part number.
Ref. Manufacturer # Qty Original part description
23 91116 1 On/Off Switch & Junction Box
24 91160 1 Element Use 92249
24 92249 1 Element & Gasket Kit - 110v (Screw In) - NLA
25 91873 1 T-Stat & ECO 120 VAC
NS 90145 1 Fuse, 2 Amp Mini

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