Rinnai 108000051 Fan Motor (R94, V53i-VB)
An OEM Rinnai fan motor replacement used in specified Rinnai tankless water heater models to support proper combustion airflow and safe operation when the correct service part is required.
Key Features
- OEM replacement fan motor identified by part number 108000051
- Listed for R94 and V53i-VB applications
- Rinnai service instructions for fan replacement include a required post-install step for some units: indoor models only - clear the PC board fan memory after installing the new fan motor
- Manufacturer safety notes during service include avoiding contact with energized areas of the control board and avoiding hot components near the heat exchanger and hot water lines
Compatibility & Applications
- Listed for use with R94 and V53i-VB
- Must only be used where the manufacturer specifies this exact part number: 108000051.
Installation & Operation Notes
- Installation should be performed by a qualified service technician.
- Reference the unit's service/installation documentation and Rinnai fan replacement instructions for the correct disassembly, reconnection, and operational checks.
- Important manufacturer note: indoor models only - clear the PC board fan memory after installing the new fan motor.
- Follow standard electrical and burn-hazard precautions noted in Rinnai service instructions (control board areas may have line voltage; components around the heat exchanger and hot water lines can be hot).
Maintenance & Troubleshooting
- This part is commonly addressed when troubleshooting symptoms tied to fan/combustion airflow performance, including error conditions associated with combustion fan failure.
- Rinnai troubleshooting guidance for fan-related issues includes checks such as ensuring the fan can turn freely, inspecting the wiring/harness connections, and measuring motor winding resistance before replacing components.
User Reviews & Q&A Summary
- Review themes frequently describe this as a noise-fix repair, with multiple users reporting an "extremely loud" unit becoming quiet again after replacement (often attributing the issue to worn/sealed bearings).
- Many reviewers say it worked like new, restored normal operation, and was straightforward to install once they confirmed the correct part.
- Several comments highlight fast shipping and helpful customer service in identifying the correct fan motor for their unit (including troubleshooting tied to an error code).