L8 Inverter Compressor Overcurrent - Daikin R71FUV1 Service Manual

Skyair series service diagnosis
Table of Contents
Si20-701_B
L8
3.68
Overcurrent
Remote Controller Display
L8
Applicable Models
RZQ-C7
Method of Error Detection
The error is detected by current flowing in the power
transistor.
Error Decision Conditions
When overload in the compressor is detected
For 460V units
(1) 19.0A and over continues for 5 seconds.
(2) 16.1A and over continues for 260 seconds.
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.
Supposed Causes
Compressor overload
Compressor coil disconnected
Defective inverter PCB
Disconnection of compressor
300
Inverter Compressor
Troubleshooting by Remote Controller
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