IVT 12PHR-N - Page 40

3-16
12PHR-N
Status of
indoor/
outdoor
units
Indication
by LED1
on
outdoor
unit*2
Malfunction No.
displayed on main unit
display section *1
Content of diagnosis Inspection
location/method
Remedy
Main
category
Sub-
category
Main
category
Sub-category
Indoor/
outdoor
units in
complete
shutdown
9 times
9 -0 Outdoor unit
cooling/heating
switch over
Thermistor
installation
error or 4-way
valve error
(1) Check to make
sure outdoor unit
thermistor TH2 (heat
exchanger) and TH5
(2-way valve) are
installed in correct
positions.
(1) Correct the
installation.
(2) Measure resistance
of thermistors TH1 and
TH5.
(2) Replace the
thermistor assembly.
(3) Check the 4-way
valve for proper
operation.
(3) Replace the 4-way
valve.
(4) No abnormality
found in above
inspections (1) through
(3).
(4) Replace the
outdoor unit control
PWB assembly.
-3 Torque control
error
(1) Check if the
refrigerant volume is
abnormally low.
(1) Change the
specied amount of
refrigerant.
(2) Check the 4-way
valve for proper
operation.
(2) Replace the 4-way
valve.
(3) check to see
compressor type is
correct.
(3) Replace the
compressor with the
correct part.
-4 Gas leak error (1) Check to make
sure outdoor
unit thermistor
TH2(heateexchange)
or indoor unit
thermistor
TH2(heateexchange)
is installed in correct
positions.
(1) Change the
installation.
(2) Check of the
refrigerant volume is
abnormally low.
(2) Change the
specied amount of
refrigerant.
Indoor/
outdoor
units in
complete
shutdown
10
times
10 -0 EEPROM error EEPROM
(outdoor) error
(1) Replace the
outdoor unit control
PWB -1 EEPROM
(outdoor) assembly.
-1 EEPROM
(outdoor)
assembly. data
error
Indoor/
outdoor
units in
complete
shutdown
11
times
11 -0 Outdoor unit
DC
fan
Outdoor unit DC
fan
rotation error
(1) Check connector
CN3 of the outdoor
unit DC fan motor for
secure installation.
(1) Correct the
installation.
(2) Check the outdoor
unit fan motor for
proper rotation.
(2) Replace the
outdoor unit fan motor.
(3) Check fuse FU3. (3) Replace the
outdoor unit control
PWB assembly.
(4) Outdoor unit
control PWB
(4) Replace the
outdoor unit control
PWB assembly.
Indoor/
outdoor
units in
complete
shutdown
12
times
12 -0 outdoor
terminal
board fus
outdoor terminal
board fuse open
error
(1) Check connector
CN10 for secure
installation.
(1) Correct the
installation.
(2) Check the fuse
open of outdoor
terminal board.
(2) Replace the
outdoor terminal
board.
12PHR-N_S530612PHRN.indd 16 2013/8/7 15:42:17