Rheem R96VA0702317MSA Error Code d1: No Model Data

What Does Code d1 Mean?

A d1 code on the Rheem R96VA0702317MSA is a critical fault indicating the furnace has no model data available. The model data is electronically stored configuration information — particularly blower motor operation parameters — that the furnace control board (IFC) needs to function. Without this data, the furnace is completely shut down and will not operate in any mode.

The model data is stored on a small memory card that plugs into connector P6 on the integrated furnace control board. This card is specific to the furnace model and defines how the ECM blower motor should operate. Note that the furnace can operate even without the physical card if valid model data was previously stored in the control board's microprocessor memory — in that case, fault d4 would appear instead. The d1 code specifically means there is no valid model data anywhere in the system.

This fault most commonly appears after a control board replacement where the original memory card was not transferred to the new board, or if the memory card has fallen out of connector P6. A technician must locate the original memory card, verify it is correct for this model, or order the correct replacement from a Rheem parts distributor.

Common Causes

When to Call a Professional

Contact a licensed HVAC technician if:

• Call a technician to locate and reinstall the model data memory card at connector P6 on the furnace control board — the card must be the correct one for the R96VA0702317MSA model
• If the original card was lost during a prior repair, the technician must order the correct replacement from Rheem ProStock and load the data before the furnace can operate

✓ Verified against manufacturer service manual — March 2026