What It Means
Missing or unreadable shared model data in communicating system.
Rheem AC & Heat Pump
Rheem AC & Heat Pump Error Code d1
Troubleshooting guide for the Rheem AC & Heat Pump system fault d1.
Possible Causes
- Missing or unseated memory card.
- Unreadable model data.
- Communicating link failure.
Not sure which one it is — or if it's none of these? Try ACLogics today.
Disclaimer: This information is for general reference. Error codes can vary by model and production year. Always refer to your machine's specific manual and the information printed on the unit itself.
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Full Diagnosis
No shared data.
All Recorded Causes
Missing, unreadable, or unavailable shared/model data in the communicating system. Check memory/model data card, communicating wiring, and matched equipment configuration.
Verify Before Replacing Parts
- Confirm the exact Rheem model family and ac and heat pump context before acting on a generic code description.
- Verify current draw, overload status, and control signal before condemning the compressor or drive, given that missing, unreadable, or unavailable shared/model data in the communicating system.
- Look for upstream conditions such as airflow or charge issues that may be pushing the compressor into protection, and check check memory/model data card, communicating wiring, and matched equipment configuration.
- After the correction, run the system long enough to confirm the ac and heat pump fault does not return under normal load.
Not sure which system this Rheem code is on?
ACLogics has guided diagnostics for 57 Rheem fault codes and asks the right questions to narrow it down.
