Rheem R96VA0702317MSA Error Code 99: Remote Faults Reset Performed
What Does Code 99 Mean?
Code 99 (Remote Faults Reset Performed) is an informational notification on the Rheem R96V Integrated Furnace Control (IFC), not a fault. The IFC keeps a fault buffer — a stored history of the trouble codes the furnace has logged over time — so a technician can review past problems even after the underlying issues are resolved. When that buffer is intentionally cleared, the control records code 99 as a marker showing the history was reset at that point.
Because this is a communicating furnace, the reset is typically initiated remotely — most often by an HVAC technician clearing the log during a service visit, or by a connected communicating thermostat. It reflects a deliberate housekeeping action on the fault log, not a change in how the furnace runs.
Unlike the operating codes on this board — such as the memory-card codes d1, d4, and d6, or the safety lockouts — code 99 does not describe a component problem, does not stop any mode, and does not require a fix. It simply appears briefly in the code history to timestamp the buffer reset. Normal heating, cooling, and fan operation continue before and after it appears.
What You'll Notice
- The furnace keeps heating, cooling, and running the fan normally with no change in performance
- Code 99 appears only as a brief entry in the fault-code history, typically right after a technician visit or a communicating-thermostat action, and does not lock the furnace out
Common Causes
| Cause | Likelihood | DIY? |
|---|---|---|
| Technician or communicating thermostat performed a remote fault buffer reset | Most common | — |
How This Is Diagnosed
No diagnosis is required because code 99 is a normal-state notification rather than a fault. If a technician is reviewing it, they simply note that the entry marks a deliberate reset of the fault buffer — usually one they performed or one triggered by the communicating thermostat — and confirm no active trouble codes remain in the history before continuing.
- No service is needed for code 99 on its own — it only records that the fault history was cleared and does not indicate any furnace malfunction
- If you are reviewing the fault log for an unrelated ongoing problem, treat any active trouble codes separately from this housekeeping notification
Frequently Asked Questions
Do I need to do anything when I see code 99?
No. Code 99 just records that the furnace's stored fault history was cleared, usually by a technician or a communicating thermostat. It is a notification, not an error, and the furnace continues to operate normally.
Does code 99 mean my furnace had a problem?
Not by itself. It only marks that the fault buffer was reset — it does not describe any component fault and does not affect heating, cooling, or fan operation. Any real problems would show as their own trouble codes, not as 99.
Why did code 99 appear after a service visit?
Technicians often clear the stored fault history after finishing a repair so the log starts fresh. The furnace records code 99 to timestamp that reset, which is why it commonly shows up right after service.
✓ Verified against manufacturer service manual — March 2026