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Directory: Catalog > Water
Heaters > A.O. Smith > Parts
Parts List: A.O. Smith BTH-400A, Series 970
- Use the chart to find the part you need to order. A diagram of the unit is below the chart to assist you in locating your part.
- Click on the underlined link to go directly to the part's page for pricing and ordering.
- For parts that are not underlined and do not have a link, please Contact Us for price and availability.
- The manufacturer has changed some part numbers to a new part number, and we have referenced the new part number in the chart (if applicable). Please note that the manufacturer may change part numbers and availability at any time.
- You can download and print the original PDF of the A.O. Smith parts list at the bottom of the page.
Cyclone XHE BTH 300A/400A Parts List
| Item |
Description |
BTH 400A
Series 970/971 |
| 1 |
Cleanout Gasket |
99038 (new # 9004099215) |
| 2 |
Cover, Cleanout |
99037 (new # 9005797205) |
| 3 |
Cover, Left |
194748 (new # 194748-000) |
| 4 |
Cover, Right |
194749 (new # 194749-000) |
| 5 |
Drain Valve |
26273-4 (new # 9003906015) |
| 8 |
Panel, Back |
194750 |
| 9 |
Temperature and Pressure Relief Valve |
99383-3 (new # 9005924205)
|
NOTES:
- The manufacturer may change part numbers and availability at any time.
* Not Illustrated
- Standard hardware items may be purchased locally. |
Cyclone XHE BTH 300A/400A Control Panel
| Item |
Description |
BTH 400A
Series 970/971 |
| 1 |
Board, Display Panel |
194808 (new # 9004593205) |
| 2 |
Bracket, Mounting Left |
194123-1 (new # 194123-001) |
| 3 |
Bracket, Mounting Right |
194123 (new # 194123-000) |
| |
Control Board, Cable Assembly (includes 4 & 4A) |
195010 |
| 4 |
Control Board |
195010 |
| 4A |
Cable Assembly |
194809 |
| 5 |
Junction Box Assembly |
194126 (new # 9004567205) |
| 6 |
Junction Box Cover |
2233 (new # 002233-000) |
| 9 |
Panel Front |
193884 (new # 9006003205) |
| 10 |
Screw, Plastic |
194202 |
| 11 |
Switch, Off/On |
193243 (new # 9005929215) |
| - Standard hardware items may be purchased locally |
Recirculating System
| Item |
Description |
BTH 300A
Series 970/971 |
| 1 |
Elbow, 3/4 in. Female - 3/4 in. Female |
194873 |
| 2 |
Elbow, 3/4 in. Male - 1 in. Female |
194872 |
| 3 |
Hose, Flexible |
194912 (new # 9006009205) |
| 4 |
Nipple, 3/4 in. - Pipe x 2 in. |
194921-3 |
| 5 |
Nipple, 3/4 in. - Pipe x 4 in. |
194921-2 |
| 6 |
Nipple, 3/4 in. - Pipe x Close |
194921-1 |
| 7 |
Pump, Recirculation |
194799 |
| 8 |
Tee, Non-Reducing |
194870 |
| 9 |
Tube, Closed End Dip |
194924 |
| 10 |
Tube, Inlet |
194820 |
| 11 |
Vent, Automatic Air |
194830 (new # 194830-000) |
| - Standard hardware items may be purchased locally. |
Detail 4 - Gas Valve
| Item |
Description |
BTH 300A
Series 970/971 |
| 1 |
Nipple, 3/4 in. - Pipe |
85040-18 (new part # 085040-018) |
| 2 |
Nipple, 1/8 in. - Pipe |
192948-2 |
| 3 |
Pipe, Union |
95515 (new # 095515-000)
|
| 4 |
Switch, Low Gas Pressure |
191149-6 (new # 9004476215) |
| 4 |
Switch, Low Gas Pressure - Propane |
191149-4 (new # 9004474215) |
| 5 |
Tee, Non-Reducing |
40119 (new # 040119-000) |
| 6 |
Valve, Natural Gas |
194536-5 (new # 9004583205) |
| 6 |
Valve, Propane |
194536-6 (new # 9006086205) |
| 7 |
Orifice, Natural Gas |
192477-7 (new part # 192477-007) |
| 7 |
Orifice, Propane |
192477-8 |
| 8 |
Orifice Holder |
192447 (new # 9006094215) |
Exhaust Elbow, Vent Kit and Blower Intake Parts
| Item |
Description |
BTH 300A
Series 970/971 |
| 1 |
Adapter, Hose Fitting |
192472 (new # 9004511215)
|
| 2 |
Elbow, 90° |
194836 (new # 9006253005) |
| 3 |
Nipple, Pipe, Closed |
194558 (new # 194558-000) |
| 4 |
Plug, Hex |
194560 (new # 194560-000) |
| 5 |
Tee |
194559 (new # 194559-000) |
| 6 |
Tubing |
191746-72 (new # 9004490215)
|
| 7 |
Connector, Exhaust |
192636 (new # 9006157205) |
| 8 |
Hose Clamp, 3 in. |
192696 (new # 9006158215) |
| 9 |
Hose Clamp, 4.5 in. |
192697 (new # 9006159215) |
| 10 |
Elbow with Screen |
192815 (new # 9001957005) |
| 11 |
Elbow, 45° x 3.5 in. dia. |
181901 (new # 181901-000) |
| 12 |
Screen |
181662 (new # 9006027015) |
| 13 |
Intake Terminal |
182167 (new # 9004538205) |
| 14 |
Wall Plates (2 required) |
181557 (new # 9004364105) |
| 15 |
Silicone Sealer, 2 oz. Tube |
181564 (new # 9004365105) |
| 16 |
Coupling |
182094 |
| 17 |
Hose Clamp |
194838 |
| 18 |
Tube, Intake |
194923 |
| 19 |
Vent Terminal, Intake |
192815 (new # 9001957005) |
Blower/Burner Assembly
| Item |
Description |
BTH 300A
Series 970/971 |
| 1 |
Burner |
194779 (new part # 9007265005) |
| 2 |
Blower/Motor Assembly |
194746 (new # 9004587205) |
| 3 |
Flange - Burner |
194960 (new # 194960-000) |
| 4 |
Gasket |
194817 (new # 9007138005) |
| 5 |
Gasket, Burner |
194777 (new # 194777-000) |
| 6 |
Gasket, Viewport |
194827 (new # 9006103215) |
| 7 |
Ignitor |
192334 (new # 9006101205) |
| 8 |
Screw, #8-18 x 1/2 |
192698 (new # 039051-001) |
| 9 |
Screw, Socket Head Cap |
192515 (new # 192515-000) |
| 10 |
Screw, Truss Hd. Mach 1/4-20 x 2.00 |
194816 (new # 194816-000) |
| 11 |
Sensor, Flame |
194776-1 (new # 9004589215) |
| 12 |
Window, Observation |
98758-3 (new # 9006102215) |
| Standard hardware items may be purchases locally. |
Powered Anode Assembly
| Item |
Description |
BTH 300A
Series 970/971 |
| 1 |
Anode |
194787 (new # 9006246005) |
| 2 |
Anode Wire, 28 in. |
194925 (new # 194925-000) |
| 3 |
Control Box |
194857 (new # 9004595205) |
| 4 |
LED with Lead Wire |
194959 (new # 194959-000) |
NOTES:
- The manufacturer may change part numbers and availability at any time. |
Download original AO Smith Parts List
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