Atwood OD045 On Demand Water Heater Parts Diagram & OEM Parts List
Use this Atwood OD045 on demand 45,000 BTU RV water heater parts breakdown to identify replacement burners, igniters, gas valves, relays, blower assemblies, heat exchangers, pressure switches, ECO switches, tubes and other OEM RV water heater service parts.
Looking for replacement water heater parts? Shop our RV Water Heater Parts Collection for burner assemblies, control boards, thermostats, ECO switches, gas valves, igniters, heating elements, drain plugs, access doors and more.
Need a complete replacement water heater? Browse our RV Propane Hot Water Heaters Collection featuring Atwood, Dometic and Suburban RV water heaters.
Atwood OD045 On Demand Water Heater Parts Breakdown
| Reference # | Mfg Part Number | Qty | Description |
|---|---|---|---|
| 1 | 90263 | 1 | BURNER ASSY (45,000 BTU) |
| 2 | 90265 | 1 | BURNER MOUNTING BRACKET |
| 3 | 90266 | 1 | IGNITER |
| 4 | 90267 | 1 | PRESSURE RELIEF VALVE (PRV) |
| 5 | 90268 | 1 | MODULATING VALVE ASSEMBLY |
| 6 | 90312 | 1 | GAS VALVE |
| 7 | 90270 | 1 | GAS LINE – BURNER |
| 8 | 90271 | 1 | RELAY |
| 9 | 90272 | 1 | WATER INLET TUBE |
| 10 | 90273 | 1 | GAS INLET TUBE |
| 11 | 90187 | 1 | IGNITION CONTROL |
| 12 | 90275 | 1 | FLUE OUTLET SCREEN |
| 13 | 90276 | 1 | FLUE TUBE |
| 14 | 90277 | 1 | PRESSURE SWITCH |
| 15 | 90278 | 1 | BLOWER ASSEMBLY |
| 16 | 90279 | 1 | FAN BASE |
| 17 | 90280 | 1 | FLUE HOOD ASSEMBLY |
| 18 | 90281 | 1 | CASE ASSEMBLY |
| 19 | 90282 | 1 | HEAT EXCHANGER |
| 20 | 90283 | 1 | ECO |
| 21 | 90311 | 1 | LOW TEMPATURE SWITCH USE 90346 |
| 21 | 90346 | 1 | LOW TEMPERATURE SWITCH KIT |
| 22 | 90285 | 1 | ORIFICE #72 (45,000 BTU) |
| 23 | 90287 | 1 | PRESSURE ELBOW ASSY |
Need help finding the correct Atwood OD045 water heater part?
Click any manufacturer part number above to search our inventory. If you cannot find the part you need, contact us with your water heater model number, serial number and part number.
Click any manufacturer part number above to search our inventory. If you cannot find the part you need, contact us with your water heater model number, serial number and part number.
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