Fujitsu General Air Conditioner Error 35

⚡ Quick Answer: The Fujitsu General Air Conditioner error code 35 signifies a communication failure between the indoor and outdoor units, often indicated by a blinkin... ⚠️ Difficulty Varies

What Does Error 35 Mean?

The Fujitsu General Air Conditioner error code 35 signifies a communication failure between the indoor and outdoor units, often indicated by a blinking operation light (approximately 10 flashes) and a timer light (around 3 flashes). This error causes the unit to halt normal operation. Possible causes include low refrigerant levels or issues with the indoor unit's manual/auto switch. Addressing this requires basic troubleshooting or professional assistance to inspect refrigerant levels and control circuitry.

Common Symptoms:

  • Blinking operation light and timer light pattern indicating error 35 (e.g., operation light ~10 flashes and timer light ~3 flashes) as reported in community video logs
  • Unit stops normal operation when error 35 appears

Possible Causes

  • Possible insufficient refrigerant (low gas) condition (medium)
  • Indoor unit manual/auto switch or internal control error (medium)

How to Fix Error 35

DIY Fix Basic checks and reset

  1. Turn the unit off using the remote and disconnect mains power for several minutes
  2. Check remote control settings and that the unit is not stuck between manual/auto modes
  3. Ensure filters are clean and outdoor unit airflow is unobstructed

Technician Only Inspect refrigerant level and control switch circuitry

  1. Use HVAC gauges to check refrigerant pressure and confirm if low refrigerant is present
  2. Inspect the indoor unit manual/auto mode switch and associated control wiring for faults
  3. Check internal control board logs and perform diagnostic with manufacturer service tools

Parts needed: Refrigerant, Indoor unit control board / manual‑auto switch assembly, Pressure sensors

🛑 When to Call a Pro:
  • If after basic reset the error persists
  • If there are signs of refrigerant leak (hissing sound, ice on lines)
  • If electrical diagnostics beyond basic checks are required

Technical Specifications

wattage N/A
component Communication Cable
resistance N/A
part_number Fujitsu 9340001001
voltage_rating 230V AC

Common Questions

What does 35 error mean on Fujitsu General Air Conditioner?

Error 35 indicates a communication failure between indoor and outdoor units, causing operational halts.

Can I fix Fujitsu General Air Conditioner 35 error myself?

Yes, you can perform basic checks like resetting the unit and ensuring clean filters.

How much does it cost to fix 35 error?

Repair costs can range from medium to high, depending on parts and refrigerant work needed.

When should I call a technician for 35?

Call a technician if the error persists after a reset, or if there are signs of a refrigerant leak.

Sources & References

Data last verified: 2026-07-01

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