Error Code: L8 - Momentary Overcurrent Of; Inverter Compressor - Daikin MicroTech III DPS Installation And Maintenance Manual

ERROR CODE: L8 – Momentary Overcurrent of Inverter Compressor
L8
Remote
Controller
Display
Method of
Malfunction is detected from current flowing in the power transistor.
Malfunction
Detection
When overload in the compressor is detected . (Inverter secondary current 16 . 1 A)
For 460V units
(1) 19 .0A and over continues for 5 seconds .
Malfunction
(2) 16 . 1 A and over continues for 260 seconds .
Decision
Condition
For 230V units
(1) A current of 33 .5A or more continues for a period of consecutive 5 sec .
(2) A current of 27 .6A or more continues for a period of consecutive 260 sec .
● Compressor overload
● Compressor coil disconnected
Supposed
Causes
● Defect of inverter PC board
● Faulty compressor
OM 1263 • MICROTECH UNIT CONTROLLER 88
Troubleshooting
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