Daikin RXYQ96PYDN Service Manual page 347

Troubleshooting by Remote Controller
Malfunction code
<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".
332
Description of malfunction
PC board malfunction
Leak detection PC board
Abnormal discharge pressure
Abnormal suction pressure
Compressor lock
OC activation
Overload, overcurrent and abnormal
lock of outdoor unit fan motor
Electronic expansion valve
malfunction
Positioning signal malfunction of
outdoor unit fan motor
Abnormal outdoor temperature
Abnormal discharge pipe temperature Td malfunction
Abnormal heat exchanger temperature
Current sensor malfunction
Discharge pipe temperature sensor
malfunction
Detail
description
on next
Heat exchanger gas temperature
page.
sensor malfunction
Suction pipe temperature sensor
malfunction
Heat exchanger temperature sensor
malfunction
Liquid pipe temperature sensor
malfunction 1
Liquid pipe temperature sensor
malfunction 2
Subcool heat exchanger temperature
sensor malfunction
Discharge pressure sensor malfunction Pc sensor malfunction (short-circuited)
Suction pressure sensor malfunction
Malfunctions
Description of malfunction (PGF)
PC board malfunction
Faulty PC board
Indicate electric leakage detected by
the leak detection PC board
HPS activated
Pe malfunction
INV compressor lock detected
STD1 compressor lock detected
STD2 compressor lock detected
Instantaneous overcurrent of DC fan motor for fan 1
DC fan motor lock detected for fan 1
Instantaneous overcurrent of DC fan motor for fan 2
DC fan motor lock detected for fan 2
EVM
EV2
EVT
DC fan motor positioning signal malfunction for fan 1
DC fan motor positioning signal malfunction for fan 2
Ta sensor malfunction (short-circuited)
Ta sensor malfunction (open)
Refrigerant overcharged
CT1 sensor malfunction
CT2 sensor malfunction
Tdi sensor malfunction (short-circuited)
Tds1 sensor malfunction (short-circuited)
Tds2 sensor malfunction (short-circuited)
Tdi sensor malfunction (open)
Tds1 sensor malfunction (open)
Tds2 sensor malfunction (open)
Tg sensor malfunction (short-circuited)
Tg sensor malfunction (open)
TsA sensor malfunction (short-circuited)
TsA sensor malfunction (open)
Tb sensor malfunction (short-circuited)
Tb sensor malfunction (open)
Tsc sensor malfunction (short-circuited)
Tsc sensor malfunction (open)
TL sensor malfunction (short-circuited)
TL sensor malfunction (open)
Tf sensor malfunction (short-circuited)
Tf sensor malfunction (open)
Tsh sensor malfunction (short-circuited)
Tsh sensor malfunction (open)
Pc sensor malfunction (open)
Pe sensor malfunction (short-circuited)
Pe sensor malfunction (open)
: ON
8
: Blink
9
: OFF
1
SiUS34-801A_b
Malfunction
code
Remote
controller
E1
E2
E3
E4
E5
E6
E7
E9
H7
H9
F3
F6
J2
J3
J4
J5
J6
J7
J8
J9
JA
JC
Troubleshooting