Fujitsu General Air Conditioner Error 58

⚡ Quick Answer: Error code 58 on Fujitsu General Air Conditioners indicates a communication failure between the indoor and outdoor units. This can prevent the unit fr... ✅ DIY Fixable

What Does Error 58 Mean?

Error code 58 on Fujitsu General Air Conditioners indicates a communication failure between the indoor and outdoor units. This can prevent the unit from starting or operating normally, with the display either flashing or showing an error message. The issue often stems from faulty communication wiring or components, necessitating thorough inspection and potential repairs.

Common Symptoms:

  • Unit fails to start or operate normally when error 58 displayed
  • Indoor and outdoor units not communicating

Possible Causes

  • Communication fault between indoor and outdoor units (medium)

How to Fix Error 58

DIY Fix Basic checks and reset

  1. Turn off the air conditioner and breaker to cut power
  2. Wait about 5 minutes
  3. Restore power and restart the unit
  4. Observe if error clears

Technician Only Inspect communication wiring and components

  1. Check wiring connections between indoor and outdoor units for corrosion, loose contacts, or damage
  2. Test continuity of communication lines with a multimeter
  3. Inspect indoor and outdoor unit PCBs for visible damage or fault indicators
  4. Replace faulty communication wiring or control board components as needed

Parts needed: Communication wiring harness, Indoor/outdoor PCB

🛑 When to Call a Pro:
  • If error 58 persists after power cycling and basic inspection
  • If wiring or PCB damage is suspected
  • If you lack tools or experience to test electrical continuity safely

Technical Specifications

wattage N/A
component Control Board
resistance N/A
part_number Fujitsu 999-999-999
voltage_rating 230V AC

Common Questions

What does 58 error mean on Fujitsu General Air Conditioner?

It indicates a communication failure between the indoor and outdoor units.

Can I fix Fujitsu General Air Conditioner 58 error myself?

Yes, you can perform basic checks and reset the unit by power cycling.

How much does it cost to fix 58 error?

Repair costs range from $100 to $400, depending on the region and parts needed.

When should I call a technician for 58?

Call a technician if the error persists after troubleshooting or if you suspect wiring damage.

Sources & References

Data last verified: 2026-07-01

User Comments (0)

Share your experience or solution below.

Be the first to comment!