In brief
Fault code 01 on Atlantic Takao / Zenkeo (Mural) means: On Atlantic wall-mounted air conditioners (Fujitsu-based), fault code 01 (often indicated by flashing: 1 Timer flash) indicates a break in the serial link. Most common cause: Interconnection cable (3-core pilot wire) cut, poor connection, or no power supply to the outdoor unit. First action: Switch off the air conditioning circuit breaker for 3 minutes.. Call a registered engineer if the fault returns after basic checks or involves refrigerant work (F-Gas registered engineer required).
According to the Atlantic / Fujitsu Service Manual, fault code 01 indicates a break in the serial link between indoor and outdoor units.
01 • Atlantic • Takao / Zenkeo (Mural)
Fault Code 01 Atlantic Air Conditioning: Communication Problem (Serial Link)
On Atlantic wall-mounted air conditioners (Fujitsu-based), fault code 01 (often indicated by flashing: 1 Timer flash) indicates a break in the serial link.
Source: Atlantic / Fujitsu Service Manual
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What does fault code 01 on Atlantic mean?
On Atlantic wall-mounted air conditioners (Fujitsu-based), fault code 01 (often indicated by flashing: 1 Timer flash) indicates a break in the serial link.
Interconnection cable (3-core pilot wire) cut, poor connection, or no power supply to the outdoor unit.
Symptômes
- The air conditioner does not start
- The flaps remain closed or open and then close
Diagnostic
1. Electrical Reset
- Switch off the air conditioning circuit breaker for 3 minutes.
- If the fault returns immediately, check the cable between the two units.
How to reset fault code 01 on Atlantic?
Repair the wiring or replace the electronic PCB if the signal no longer passes.
When should you call an F-Gas engineer?
Fault code 01 most often appears during air conditioning operation, particularly on Takao / Zenkeo (Mural). The air conditioner does not start.
Field context
Fault code 01 most often appears during air conditioning operation, particularly on Takao / Zenkeo (Mural). The air conditioner does not start.
Questions fréquentes
What does code 01 mean?
On Atlantic wall-mounted air conditioners (Fujitsu-based), fault code 01 (often indicated by flashing: 1 Timer flash) indicates a break in the serial link.
What is the most common cause of 01?
Interconnection cable (3-core pilot wire) cut, poor connection, or no power supply to the outdoor unit.
How do you diagnose 01 in the field?
Electrical reset: Switch off the air conditioning circuit breaker for 3 minutes.
How do you resolve fault 01?
Repair the wiring or replace the electronic PCB if the signal no longer passes.
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