# T117_F · Rheem · Communicating Furnace — Residential gas furnace fault code lookup by brand For T117_F · Rheem · Communicating Furnace, brand is Rheem; model / control board is Communicating Furnace; fault code is T117_F; fault name is Detect RPM Motor Failure, verified against its source on 2026-08-28. - **Brand:** Rheem - **Model / control board:** Communicating Furnace - **Fault code:** T117_F _(verified: appears in the quote below)_ - **Fault name:** Detect RPM Motor Failure _(verified: appears in the quote below)_ ## What the source says > T117_F Detect RPM Motor Failure ## Source - https://airmanagementsupply.com/documents/rheem-ruud_R802V_UH_installation_instructions.pdf Last verified: 2026-08-28. Review by: 2028-08-27. Part of [Residential gas furnace fault code lookup by brand](https://referencesource.org/residential-furnace-fault-codes-by-brand/).