Daikin RXYQ96PYDN Service Manual page 349

Troubleshooting by Remote Controller
<Monitor mode>
To enter the monitor mode, push the
MODE (BS1) button when in
"Setting mode 1".
* Refer to Page 106, 254 for Monitor
mode.
<Selection of setting item>
Push the SET (BS2) button and set
the LED display to a setting item.
* Refer to Page 106, 254 for Monitor
mode.
<Confirmation of malfunction 1>
Push the RETURN (BS3) button
once to display "First digit" of
malfunction code.
<Confirmation of malfunction 2>
Push the SET (BS2) button once to
display "Second digit" of malfunction
code.
<Confirmation of malfunction 3>
Push the SET (BS2) button once to
display "malfunction location".
<Confirmation of malfunction 4>
Push the SET (BS2) button once to
display "master or slave 1 or slave 2"
and "malfunction location".
Push the RETURN (BS3) button and
switches to the initial status of
"Monitor mode".
∗ Push the MODE (BS1) button and
returns to "Setting mode 1".
334
Description of malfunction
INV PC board malfunction
Rise in INV radiation fin temperature
DC output overcurrent
Electronic thermal
Stall prevention (time limit)
INV-Outdoor unit transmission malfunction INV transmission malfunction
Open phase and unbalanced power supply
Switch box inside temperature sensor
malfunction
INV radiation fin temperature sensor malfunction
Faulty combination of INV and fan driver
Out of gas
Detail
Reversed phase
description
Abnormal power supply voltage
on next
page.
Test run not carried out yet
Faulty transmission between indoor
and outdoor units
Faulty transmission between outdoor
units
Faulty transmission with other systems
Faulty field setting
Faulty system line
Faulty transmission with accessory
equipment
Unmatched wiring/piping, no system settings Unmatched wiring/piping
Malfunctions
Description of malfunction (PGF)
Faulty IPM
Current sensor failure confirmation 1
IGBT malfunction
Others
Faulty inverter setting
Overheat of INV radiation fin temperature
Instantaneous overcurrent of INV
Electronic thermal 1
Electronic thermal 2
Loss of synchronization
Speed degradation after startup
Thunder detected
Stall prevention (increased current)
Stall prevention (startup failure)
Abnormal starting waveform
Loss of synchronization
Unbalanced INV power supply voltage
INV-box temperature thermistor
malfunction
INV fin thermistor malfunction
Faulty combination of INV
Faulty combination of fan driver 1
Faulty combination of fan driver 2
Out-of-gas alarm
Reversed phase malfunction
Insufficient INV voltage
INV open phase (T phase)
Abnormal charge of capacitor of INV main circuit
Test run not carried out yet
Alarm given when failing to measure the
amount of refrigerant during test run
IN-OUT transmission malfunction
System malfunction
Sequential start ADP alarm
Sequential start ADP malfunction
Multi transmission malfunction (Multi 1)
Multi transmission malfunction (Multi 2)
Faulty multi horsepower setting
Erroneous multi address
Excess multi connection
Multi system malfunction
Other system or other unit in the same system
System transmission malfunction
Excess indoor units connected
Faulty field setting
Erroneous refrigerant
Multi ID malfunction
TSS field setting alarm
CT address alarm
Faulty connection of BS units by heat
pump equipment
Faulty connection between multi heat
pump and heat recovery equipment
Wrong wiring (auto address error)
Multi level converter malfunction
Multi level converter alarm
: ON
8
: Blink
9
1 : OFF
SiUS34-801A_b
Malfunction
code
Remote
controller
L1
L4
L5
L8
L9
LC
P1
P3
P4
PJ
U0
U1
U2
U3
U4
U7
U9
UA
UH
UJ
UF
Troubleshooting