Rheem AC & Heat Pump

Rheem AC & Heat Pump Error Code 83

Troubleshooting guide for the Rheem AC & Heat Pump system fault 83.

What It Means

Condenser coil temperature sensor fault.

Possible Causes

  • Sensor reading out of temperature range.
  • Loose or damaged sensor wiring.
  • Corroded connector terminals.
  • Failed condenser coil thermistor.

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

Condenser coil temperature fault.

All Recorded Causes

Coil sensor detects abnormally low or high coil temperature, sensor out of range, loose/damaged sensor wiring, poor sensor connection, or failed sensor.

Verify Before Replacing Parts

  1. Confirm the exact Rheem model family and ac and heat pump context before acting on a generic code description.
  2. Confirm filter condition, blower operation, and coil cleanliness before replacing any controls — start by ruling out whether coil sensor detects abnormally low or high coil temperature, sensor out of range, loose/da….
  3. Measure airflow-related readings that match the symptom, such as temperature split or static pressure, and check whether the next candidate on the list.
  4. 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.

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