Sharp AE-X26FR-N Service Manual page 37

Status of Indication Malfunction
indoor/ by LED1 on No. dis-
outdoor outdoor played on
units unit *2 main unit
display sec-
tion *1
Main
cate-
gory
Indoor/ 11 11
outdoor times
units in
complete
shutdown
Indoor/ 13 13
outdoor times
units in
complete
shutdown
Indoor/ 14 14
outdoor times
units in
complete
shutdown
Indoor/
outdoor
units in
operation
Content of diagnosis
Sub- Main category Sub-category
cate-
gory
-0 Outdoor unit DC Outdoor unit DC fan
fan rotation error
-0 DC compressor Compressor startup
error
-1 Compressor rota-
tion error
(120° energizing
error)
-0 Outdoor unit PAM overvoltage
PAM error
Compressor rota-
tion error
-1 PAM clock error
Inspection location/method
(1) Check connector CN3 of
the outdoor unit DC fan
motor for secure installa-
tion.
(2) Check the outdoor unit
fan motor for proper rota-
tion.
(3) Check fuse FU3.
(4) Outdoor unit control PWB
(1) Check the colors (red,
white, orange) of the
compressor cords for
proper connection. (PWB
side, compressor side)
(2) Check if the IPM terminal
resistance values are uni-
form.
(3) No abnormality found in
above inspections (1) and
(2).
(4) No abnormality found in
above inspections (1)
through (3).
(1) Check the AC power sup-
ply voltage for fluctuation.
(2) No abnormality found in
above inspection (1).
(1) Check the PAM clock for
proper input.
3 – 16
AYXP26FRN
Remedy
(1) Correct the installa-
tion.
(2) Replace the outdoor
unit fan motor.
(3) Replace the outdoor
unit control PWB
assembly.
(4) Replace the outdoor
unit control PWB
assembly.
(1) Correct the installa-
tion.
(U: Red, V: White, W:
Orange)
(2) Replace the outdoor
unit control PWB
assembly.
(3) Replace the outdoor
unit control PWB
assembly.
(4) Replace the com-
pressor.
(1) Connect stable power
supply.
(2) Replace the outdoor
unit control PWB
assembly.
(1) Replace the outdoor
unit control PWB
assembly.