Daikin RZP100DVAL [137/255] Troubleshooting by led on inverter outdoor unit pcb

Daikin RZP100DVAL [137/255] Troubleshooting by led on inverter outdoor unit pcb
Procedure of Self-Diagnosis by LED SiE25-110
128 Troubleshooting
5.2 Troubleshooting by LED on Inverter Outdoor Unit PCB
The following diagnosis can be conducted by turning on the power switch and checking the LED
indication on the printed circuit board of the outdoor unit.
4 : LED on 3 : LED off 5 : LED blinks — : Not used for diagnosis
Notes: 1. Turn off the power switch, and turn it on again after 5 seconds or more. Check the error
condition, and diagnose the problem.
2. Turn off the power switch. After 5 seconds or more, disconnect the connection wire (2). Then
turn on the power switch. If the HAP on the outdoor unit PCB flashes after about 10 seconds,
the indoor unit PCB is faulty.
3. The error detection monitor continues to indication the previously generated error until the
power switch is turned off.
Be sure to turn off the power switch after inspection.
4. Also check for open phase.
Microcomputer
in normal
operation
Error detection Description
HAP H1P H2P H3P H4P
(Green) (Red) (Red) (Red) (Red)
5 3333
Normal
4
————
Faulty outdoor unit PCB (Note 1)
3
————
Power supply abnormality, or faulty
outdoor unit PCB (Note 2)
54333
Activation of protection device (Note 4)
4433
Faulty thermistor
3343
Compressor motor ground fault, short-
circuit, power transistor short-circuit
3334
Faulty inverter cooling
4334
Momentary outage of supply voltage
33

Fan motor system error
3444
Compressor overload, open circuit in
compressor motor
4444
Compressor seizing
3433
Open phase power supply or main circuit
capacitor malfunction

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