E5 Compressor Motor Lock - Daikin R71FUV1 Service Manual

Si20-701_B
E5
3.32
Remote Controller Display
E5
Applicable Models
RZQ-K/H, RZQ(S)-B/C, RZR-KU/HU
Method of Error Detection
Inverter PCB takes the position signal from UVWN line
connected between the inverter and compressor, and
detects the position signal pattern.
Error Decision Conditions
The position signal with 3 times cycle as imposed
frequency is detected when compressor motor operates
normally, but 2 times cycle when compressor motor
locks. When the position signal in 2 times cycle is
detected
Supposed Causes
Compressor lock
Incorrect UVWN wiring
Defective inverter PCB
Stop valve is not opened
High discharge pressure starting (For RZQ-K, RZQG,
RZR-KU/HU)
176
Compressor Motor Lock
Troubleshooting by Remote Controller