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Fujitsu Error Code 32: Indoor main PCB error (EEPROM / model info) (Heat Pump)

Updated · by Aurora Star Tech Inc.

Fujitsu error code 32 on a heat pump means: Indoor main PCB error (EEPROM / model info). It is also called Fujitsu diagnostic code 32.

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

Homeowner? What Fujitsu code 32 means for you

Check, then call Your heat pump is reporting: Indoor main PCB error (EEPROM / model info). This is often caused by something simple. Try the safe checks below; if the code returns, book a service call before it turns into a no-heat or no-hot-water emergency.

Safe things you can check yourself

  • Check the thermostat: right mode (Heat or Cool), set a few degrees past room temperature, and fresh batteries if it uses them.
  • Check both breakers and the outdoor disconnect box beside the outdoor unit; all should be ON.
  • Look at the air filter. If it is grey and clogged, replace it; a blocked filter causes many shutdowns.
  • In winter, keep snow and ice off and away from the outdoor unit. A short defrost cycle with steam is normal.
  • Try one reset: turn the power off for 30 seconds, then back on. If the code comes back, stop resetting and call a technician.

Call (647) 657-2977Book a service call

Licensed technicians serving Vaughan, Toronto and the GTA.

What does Fujitsu error code 32 mean?

At power-up the indoor board cannot read its EEPROM or the model data is wrong. Indoor lamps: OPERATION (green) flashes 3x, TIMER (orange) flashes 2x, ECONOMY (green) flashes fast nonstop; wired remote shows 32.

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)

Common causes of Fujitsu code 32

  • Electrical noise
  • Bad connector or corrosion on the board
  • Indoor main PCB failure
Safety: Gas, electrical and refrigerant work must be done by a licensed technician. Turn off power and gas before servicing, never bypass a safety control, and always follow the manufacturer's manual for your exact model.

Other Fujitsu Heat Pump codes

CodeMeaning
23Combination error
24Connection unit number error
26Indoor unit address setting error
27Primary / secondary unit setup error
29Connection unit number error (wired remote system)
31Power supply interruption error
33Indoor fan motor power consumption error
35MANUAL AUTO button error
39Indoor fan motor power supply error
41Room (intake air) temperature sensor error
42Indoor coil (heat exchanger middle) sensor error
44Human (occupancy) sensor error

All Fujitsu Heat Pump error codes →

Fujitsu code 32: homeowner questions

What does Fujitsu code 32 mean?

Indoor main PCB error (EEPROM / model info). At power-up the indoor board cannot read its EEPROM or the model data is wrong. Indoor lamps: OPERATION (green) flashes 3x, TIMER (orange) flashes 2x, ECONOMY (green) flashes fast nonstop; wired remote shows 32.

Is it safe to keep using my heat pump with code 32?

It depends on the cause. This is often caused by something simple. Try the safe checks below; if the code returns, book a service call before it turns into a no-heat or no-hot-water emergency.

Can I reset Fujitsu code 32 myself?

You can try one reset (power off for 30 seconds, then on). If Fujitsu code 32 comes back, the cause is still there and a licensed technician should check it.

Who can fix Fujitsu code 32 near me?

Aurora Star Tech Inc. repairs Fujitsu heat pumps in Vaughan, Toronto and across the GTA. Call (647) 657-2977 or book a service call online.

Homeowner help: AC Running But Not Cooling: What to Check · Heat Pump Not Heating or Blowing Cold Air

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. Written in our own words as a summary; always check the original manual.

General guidance for qualified technicians. The manufacturer's installation and service manual and local codes always take priority. Aurora Star Tech is not affiliated with, endorsed by or sponsored by any equipment manufacturer; brand and model names are used only to identify equipment and belong to their owners.

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