Daikin RZQG71L9V1 Service Manual page 105

ESIE15-13C
3.2.7 Troubleshooting
Error code
Gas shortage - Outdoor unit (Factor 0)
U0 - 02
U0 - 03 Gas shortage - Outdoor unit (Factor 1)
Gas shortage - Outdoor unit (Factor 2)
U0 - 04
U2 - 01 Power supply voltage error
Open phase of power supply
U2 - 02
U2 - 03 Main circuit capacitor charge error
SP/MP-PAM overvoltage error
U2 - 04
U2 - 35 AC voltage sensor error
Incorrect number of indoor units connected
UA - 01
Multiple master units detected
UA - 02
UA - 03 Excess indoor units connected
UA - 05 Indoor-Outdoor transmission error between
slave 1 and outdoor unit
UA - 07 Indoor-Outdoor transmission error between
slave 2 and outdoor unit
Indoor-Outdoor transmission error between
UA - 09
slave 3 and outdoor unit
Incorrect wiring
UF - 01
UF - 02 Piping connected the other way round
Field Setting
Description of error
Field Setting from Outdoor Unit PCB
Troubleshooting
Description of diagnosis
This error results from a shortage of refrigerant. Refer to the
" U0 " Troubleshooting flow chart and make a diagnosis, and
then take countermeasures.
This error results from a shortage of refrigerant cause by gas
leakage. Charge refrigerant up to the normal refrigerant
amount.
This error results from clogging caused somewhere in the
refrigerant piping system. Check for a failure to open the stop
valve and clogging in the refrigerant system.
This error is supposed to have resulted from under- or over-
voltage of the power supply, or faulty voltage sensor in the PC
board.
Check for any open phase of the power supply.
There is abnormal circuit current flowing in the PC board. If
wire connections related to the PC board are normal, replace
the outdoor unit PC board.
There is overvoltage between SP/MP and PAM (single
phase). If wire connections related to the PC board are
normal, replace the outdoor unit PC board.
A failure of the power supply sensors was detected in the
circuit board. Refer to the "
make a diagnosis for the PCB.
This error will be displayed if the locally-set number of indoor
units is different from the detected number of indoor unit.
There are a number of indoor units with a remote controller
connected.
Connect the remote controller to only one indoor unit.
This error will be displayed if five or more indoor units are
connected.
There is an error in transmission between the outdoor unit and
slave indoor unit 1. Check for the connection of the jumper
between the slave indoor unit (with no remote controller
connected) and the outdoor unit.
There is an error in transmission between the outdoor unit and
slave indoor unit 2. Check for the connection of the jumper
between the slave indoor unit (with no remote controller
connected) and the outdoor unit.
There is an error in transmission between the outdoor unit and
slave indoor unit 3. Check for the connection of the jumper
between the slave indoor unit (with no remote controller
connected) and the outdoor unit.
There is an error in wire connections for transmission between
indoor and outdoor units (judged with the indoor unit). Check
for the connections of jumpers 1, 2 and 3 between the indoor
and outdoor units.
There is an error in operation mode and refrigerant piping
detection temperature. Check for any refrigerant piping
connected the other way round, shortage of refrigerant, etc.
U2
" Troubleshooting flow chart and
91