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Fault Displays
Troubleshooting Faults
Observe all electrical precautions during service of indoor and outdoor units. During Static service (serving nit
without power applied), wait 10 minutes before service units.
During dynamic service (servicing while unit is energized), be sure unit is properly grounded.
Troubleshooting procedure:
1. Conrmation
2. Judgment of ashing LED of Indoor/Outdoor unit
3. Check the part associated with the fault code.
Precautions:
A large capacity electrolytic capacitor is used in the outdoor unit controller (inverter). Capacitor should be
discharged before attempting to work on board. Electrical shock hazard will be present even aer unit is
disconnecte3d from power source.
Conrmation:
Conrm that the unit has proper voltage within 10% of rated value.
Observe ashing LED of indoor/outdoor unit for diagnostic information.
4 Minutes aer protection stop of motor, the malfunction error code is shown. In other situations, the
malfunction will be displayed by pressing the light button for 6 times within 4 seconds.
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