Fujitsu · Heat pump

33 Indoor fan motor power consumption error

Medium severity Fujitsu slim duct ARU 7-18 (LL type)

What the control is telling you

The indoor fan motor's power draw is abnormal. Indoor lamps: OPERATION (green) flashes 3x, TIMER (orange) flashes 3x, ECONOMY (green) flashes fast nonstop; wired remote shows 33.

Applies to: Fujitsu ductless heat pumps: Fujitsu slim duct ARU 7-18 (LL type)

Likely causes

Fan motor fault
Blocked fan/filter

Test and repair steps

Check filter and fan wheel.
Test the motor; replace motor or PCB as needed.

Settings for these units

Operating range and service space · Fujitsu multi-zone outdoor 18/24 type

Other codes on the same units

27 Primary / secondary unit setup error
29 Connection unit number error (wired remote system)
31 Power supply interruption error
32 Indoor main PCB error (EEPROM / model info)
35 MANUAL AUTO button error
39 Indoor fan motor power supply error
41 Room (intake air) temperature sensor error
42 Indoor coil (heat exchanger middle) sensor error

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Source: 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.