GSXP12HRN
3 – 2
Indication by operation lamp on indoor unit
Lighting pattern at the time of timer lamp lighting
Off for 5 seconds
Operation lamp
(RED)
Cluster lamp
(BLUE)
Operation lamp
(RED)
Cluster lamp
(BLUE)
Operation lamp
(RED)
Cluster lamp
(BLUE)
Operation lamp
(RED)
Cluster lamp
(BLUE)
Operation lamp
(RED)
Cluster lamp
(BLUE)
Operation lamp
(RED)
Cluster lamp
(BLUE)
Operation lamp
(RED)
Cluster lamp
(BLUE)
Operation lamp
(RED)
Cluster lamp
(BLUE)
Operation lamp
(RED)
Cluster lamp
(BLUE)
Operation lamp
(RED)
Cluster lamp
(BLUE)
Operation lamp
(RED)
Cluster lamp
(BLUE)
Operation lamp
(RED)
Cluster lamp
(BLUE)
Operation lamp
(RED)
Cluster lamp
(BLUE)
Operation lamp
(RED)
Cluster lamp
(BLUE)
Operation lamp
(RED)
Cluster lamp
(BLUE)
Operation lamp
(RED)
Cluster lamp
(BLUE)
Operation lamp
(RED)
Cluster lamp
(BLUE)
Operation lamp
(RED)
Cluster lamp
(BLUE)
Operation lamp
(RED)
Cluster lamp
(BLUE)
Operation lamp
(RED)
Cluster lamp
(BLUE)
Operation lamp
(RED)
Cluster lamp
(BLUE)
Operation lamp
(RED)
Cluster lamp
(BLUE)
: Flashes in 2-sec intervals (normal), : On, : Off, : Flashes 3 times in 0.2-sec intervals
(When LED1 on the outdoor unit flashes in 2-sec intervals, the outdoor unit is in normal condition.)
Status of
indoor/outdoor
units
Indication by
LED1 on
outdoor unit
*2
Malfunction No.
Content of diagnosis
Inspection location/method Remedy
Main
category
Sub-
category
Main
category
Sub-category
Indoor/outdoor
units in
complete
shutdown
Indoor/outdoor
units in
complete
shutdown
Indoor/outdoor
units in
complete
shutdown
Indoor/outdoor
units in
complete
shutdown
Indoor/outdoor
units in
complete
shutdown
Indoor/outdoor
units in
complete
shutdown
Indoor/outdoor
units in
complete
shutdown
Indoor unit in
operation
Outdoor unit in
temporary stop
5 times
6 times
7 times
9 times
11 times
13 times
14 times
Outdoor unit
thermistor
open-circuit
Outdoor unit
DC
Outdoor unit
AC
Outdoor unit
cooling/heati
ng switchover
Outdoor unit
DC fan
DC
compressor
Outdoor unit
active filter
Heat exchanger
thermistor open-circuit
error
(1) Check connector CN8 of the outdoor unit
thermistor for secure installation.
(2) Measure resistance of outdoor
thermistors TH1 to TH5.
(3) Check the lead wires of thermistors TH1
through TH5 on the outdoor unit control
PCB for open-circuit.
(4) No abnormality found in above
inspections (1) through (3).
(1) Correct the installation.
(2) Replace the outdoor unit
thermistor assembly.
(3) Replace the outdoor unit
thermistor assembly.
(4) Replace the outdoor unit control
PCB assembly.
(1) IPM continuity check
(2) Check the IPM and heat sink for secure
installation.
(3) Check the outdoor unit fan motor for
proper rotation.
(4) No abnormality found in above
inspections (1) through (3).
(5) No abnormality found in above
inspections (1) through (4).
(1) Check the outdoor unit air outlet for
blockage.
(2) Check the outdoor unit fan for proper
rotation.
(1) Replace the outdoor unit control
PCB assembly.
(2) Correct the installation (tighten the
screws).
Apply silicon grease.
(3) Replace the outdoor unit fan
motor.
(4) Replace the outdoor unit control
PCB assembly.
(5) Replace the compressor.
(1) Ensure unobstructed air flow from
the outdoor unit air outlet.
(2) Check the outdoor unit fan motor.
Check the IPM is attached correctly to the
outdoor unit control PWB
Replace the outdoor unit control PWB
assembly
(1) Check the outdoor unit air outlet for
blockage.
(2) Check the outdoor unit fan for proper
rotation.
(1) Ensure unobstructed air flow from
the outdoor unit air outlet.
(2) Check the outdoor unit fan motor.
(1) Check if there is an open-circuit in the
secondary winding of the current
transformer of the outdoor unit control
PCB.
(2) Check if the refrigerant volume is
abnormally low.
(3) Check if the refrigerant flows properly.
(1) Replace the outdoor unit control
PCB assembly.
(2) Charge the specified amount of
refrigerant.
(3) Correct refrigerant clogs.
(2-way valve, 3-way valve, pipe,
expansion valve)
(1) Check to make sure outdoor unit
thermistor TH2 (heat exchanger) TH5 (2-
way valve) are installed in correct
positions.
(2) Measure resistance of thermistors TH1
and TH5.
(3) Check the 4-way valve for proper
operation.
(4) No abnormality found in above
inspections (1) through (3).
(1) Correct the installation.
(2) Replace the thermistor assembly.
(3) Replace the 4-way valve.
(4) Replace the outdoor unit control
PCB assembly.
(1) Check if the refrigerant volume is
abnormally low.
(2) Check the 4-way valve for proper
operation.
(3) Check to see if the compressor type is
correct.
(1) Charge the specified amount of
refrigerant.
(2) Replace the 4-way valve.
(3) Replace the compressor with the
correct part.
(1) Check connector CN3 of the outdoor unit
DC fan motor for secure installation.
(2) Check the outdoor unit fan motor for
proper rotation.
(3) Check fuse FU3.
(4) Outdoor unit control PCB
(1) Correct the installation.
(2) Replace the outdoor unit fan
motor.
(3) Replace the outdoor unit control
PCB assembly.
(4) Replace the outdoor unit control
PCB assembly.
(1) Check the colors (red, white, orange) of
the compressor cords for proper
connection. (PCB side, compressor side)
(2) Check if the IPM terminal resistance
values are uniform.
(3) No abnormality found in above
inspections (1) and (2).
(4) No abnormality found in above
inspections (1) through (3).
(1) Correct the installation.
(U: Red, V: White, W: Orange)
(2) Replace the outdoor unit control
PCB assembly.
(3) Replace the outdoor unit control
PCB assembly.
(4) Replace the compressor.
(1) Check the AC power supply voltage for
fluctuation.
(2) No abnormality found in above inspection
(1).
(1) Connect stable power supply.
(2) Replace the outdoor unit control
PCB assembly.
(1) Check the PAM clock for proper input. (1) Replace the outdoor unit control
PCB assembly.
(1) IPM continuity check (1) Replace the outdoor unit control
PCB assembly.
5-0
6-0
7-0
9-0
11 -0
13 -0
14 -0
-1
-3
-1
-2
-3
Outside temperature
thermistor open-circuit
error
-1
-1
Suction thermistor
open-circuit error
2-way valve thermistor
open-circuit error
Discharge thermistor
open-circuit error
DC overcurrent error
IPM pin level error
AC overcurrent error
AC overcurrent error in
OFF status
AC maximum current
error
AC current deficiency
error
Thermistor installation
error or 4-way valve
error
Torque control error
Outdoor unit DC fan
rotation error
Compressor startup
error
-1
Compressor rotation
error
PAM overvoltage error
PAM clock error
-2
-3
-4
Indoor unit in
operation
Outdoor unit in
complete
shutdown
Wires
between
units
Wires
between
units
(1) Check the wires between units.
(2) Check voltage between Nos. 1 and 2 on
the indoor/outdoor unit terminal boards.
(1) Connect stable power supply.
(2) Replace the outdoor unit control
PCB assembly.
(1) Check the wires between units. (1) Correct the wiring.
(1) Check the wires between units.
(2) Check the outdoor unit fuse.
(3) Check 15-V, 13-V and 5-V voltages on
the PCB.
Check resistance between IPM terminals.
(4)CheckpinsNo.5and8ofconnector
CN3A of the outdoor unit fan motor for
short-circuit.
(5) Outdoor unit control PCB
(1) Correct the wiring.
(2) Replace the fuse/outdoor unit
control PCB assembly.
(3) Replace the outdoor unit control
PCB assembly.
(4) Replace the outdoor unit fan
motor.
(5) Replace the outdoor unit control
PCB board.
17 -0
18 -0
-1
Serial open-circuit
Serial short-circuit
(1) Check the wires between units. (1) Correct the wiring.
Serial erroneous wiring
Outdoor unit does not
turn on due to
erroneous wiring
To Next Page
Loading...
