Rheem · Heat pump

d1 No shared data

Medium severity Rheem/Ruud PRL-JEC heat pump (Comfort Control2 ICC)

What the control is telling you

The control has no shared (unit) data.

Applies to: (-)PRL-JEC 2-stage 16 SEER heat pumps: RPRL/UPRL-024JEC, -036JEC, -048JEC, -060JEC

Likely causes

  • Memory card missing, damaged or wrong

Test and repair steps

  1. Check the memory card is installed and tethered to this unit.
  2. Replace the memory card with one holding the correct system information (order from Pro Stock).
  3. Never use a memory card from a different unit.

Settings for these units

Outdoor unit clearances · Rheem/Ruud PRL-JEC heat pump (Comfort Control2 ICC)

LocationMinimum
Above unit (fan discharge)60 in. [1524 mm]
Coil air inlets (3 sides)6 in. [152 mm]
Service access side24 in. [610 mm]
Between two units (grille sides aligned)12 in. total (6 in. per unit)

Do not reduce the 60 in. discharge or 24 in. service clearances.

Inlet clearances under 6 in. reduce capacity and efficiency.

Models that show this code

4 models in Rheem/Ruud PRL-JEC heat pump (Comfort Control2 ICC)

RPRL-024JECRPRL-036JECRPRL-048JECRPRL-060JEC

Other codes on the same units

  • 83 Condenser coil temperature sensor fault
  • 84 Outdoor ambient temperature sensor fault
  • 90 Communication fault
  • 93 Internal control fault
  • d3 Airflow CFM mismatch
  • d4 Memory card invalid for device
  • d8 Old shared data
  • L4 Locked rotor lockout

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Source: Rheem (-)PRL-JEC Heat Pump Installation Instructions, 12.6 ICC Diagnostic Codes / 18.2 Replacement of Control Board, p.29, 31, 43. Summarized in our own words; check the original manual for your model.

Homeowner looking at this code? See what it means for you and when to call a technician.

For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.