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Fujitsu · Heat pump

62 Outdoor main PCB error (EEPROM / model / micro comms)

High severity Fujitsu ductless split/multi/VRF (general code list)Fujitsu wall-mounted 7-15 (NA ASU/AOU type)Fujitsu slim duct ARU 7-18 (LL type)

What the control is telling you

The outdoor board cannot read its EEPROM, its model data is wrong, or its micros are not talking. Indoor lamps: OPERATION (green) flashes 6x, TIMER (orange) flashes 2x, ECONOMY (green) flashes fast nonstop; wired remote shows 62.

Applies to: Fujitsu ductless heat pumps: Fujitsu ductless split/multi/VRF (general code list), Fujitsu wall-mounted 7-15 (NA ASU/AOU type), Fujitsu slim duct ARU 7-18 (LL type)

Likely causes

  • Noise, short power loss or voltage dip
  • Outdoor main PCB failure

Test and repair steps

  1. Reset power and run.
  2. If it clears, check for voltage dips, momentary outages and ground problems.
  3. If it comes back, replace the outdoor main PCB.

Settings for these units

Other codes on the same units

  • 53 Drain pump error
  • 57 Damper error
  • 58 Intake grille error
  • 61 Outdoor reverse / missing phase or wiring error
  • 63 Inverter error
  • 64 PFC / active filter circuit error
  • 65 IPM / trip terminal L error
  • 68 Rush current limiting resistor temp rise error

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Source: Fujitsu All Fujitsu split - multi - VRF (generic code list) codes.pdf - section error code table (indoor LED flashes); Fujitsu Wall-mounted 7-9-12-15 (North American trilingual, UTY-RNNUM remotes; e.g. ASU9-12-15 RLF1-RLS familie.pdf - section 14 Error codes; Fujitsu Wall-mounted KMCG (ASEH-AOEH 07-14) - Fujitsu UK; same error-code scheme as NA ASU-AOU units service S.pdf - section 3 Troubleshooting, 2 Troubleshooting with error code; Fujitsu Slim duct AR07-09-12-14-18 (ARU-ARYG LL-type equivalent) installation P-N 9381858064.pdf - section 14 Error codes. 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.