Sharp AE-X4M30PU Service Manual page 19

Outdoor unit
Problem
indication
symptom
→
(LED1)
Indoor and 12-time O O O O O Timer (Orange)
outdoor
O O
units do not
operate.
Indoor and 13-time O O O O O Timer (Orange)
outdoor
O O
units do not
operate.
O O O O O Timer (Orange)
O O
O O O O O Timer (Orange)
O O
Indoor and O O O O O Timer (Orange)
outdoor units
O O
operate.
Indoor and 14-time O O O O O Timer (Orange)
outdoor
O O O
units do not
operate.
O O O O O Timer (Orange)
O O O
O O O O O Timer (Orange)
O O O
O O O O O Timer (Orange)
O O O
O
Indoor unit Lighting or O O O O O Timer (Orange)
operates. OFF
O
Outdoor unit
does not
operate.
Indoor unit Lighting or O O O O O Timer (Orange)
operates. OFF
O
Outdoor unit
does not
operate.
Indoor and O O O O O Timer (Orange
outdoor
O
units do not
operate.
Indoor and Normal O O O O O Timer (Orange)
outdoor blinking or
O
units do not OFF
operate.
Indoor and Normal O O O O O Timer (Orange)
outdoor blinking or
O O
units do not OFF
operate.
Malfunction
Indoor unit
No.*
Lamp Main Sub
12
Operation (green)
Plasmacluster (blue)
13
O Operation (green)
Plasmacluster (blue)
O Operation (green)
O Plasmacluster (blue)
O Operation (green)
O Plasmacluster (blue)
O Operation (green)
O O Plasmacluster (blue)
14
Operation (green)
Plasmacluster (blue)
Operation (green)
O Plasmacluster (blue)
Operation (green)
O Plasmacluster (blue)
Operation (green)
Plasmacluster (blue)
17
O Operation (green)
Plasmacluster (blue)
18
O Operation (green)
Plasmacluster (blue)
O Operation (green)
O Plasmacluster (blue)
19
O O Operation (green)
Plasmacluster (blue)
20
Operation (green)
Plasmacluster (blue)
Content of diagnosis
Main Sub
0 Thermal fuse Thermal fuse error
in terminal in terminal board (for
board power supply)
0 DC Compressor startup
compressor error
1 Compressor rotation
error.
(at120C energizing)
2 Compressor rotation
error
(at 180C energizing)
3 Detection error of
inverter current
0 Outdoor unit PFC Module over
Active filter
voltage error
1 PFC Module clock
error
2 PFC Module low
voltage error
4 PFC Module error
0 Wiring Serial opencircuit
between
units
0 Wiring Serial opencircuit
between
units
1
0 Indoor unit Indoor unit fan error 1) Check the indoor fan motor for
fan
0 Indoor unit EEPROM data error (EEPROM read data error)
control PCB
19
Check point
1) Check the thermal fuse in 1) Replace terminal board
terminal board (for Power for Power supply.
supply)
2) Correct the installation.
2) Check connector CN5 of
3) Replace the outdoor unit
the outdoor unit.
control PCB assembly.
3) 1) 2): Normal
1) Check the colors (red, 1) Correct the installation.
white, orange) of the com-
(U: Red, V: White, W:
pressor cords for proper
Orange)
connection.
2) Replace the outdoor unit
(PWB side, compressor side)
control PWB assembly.
2) Check if the IPM terminal
3) Replace the outdoor unit
resistance values are
control PWB assembly.
uniform.
4) Replace the compres-
3) Check if outdoor main
sor.
relay (MRY1) turns on
and voltage of both end of
the condenser (C10) has
become DC290-330V.
4) 1) 2) 3) : Normal
Check the circuit of detection Replace the outdoor unit
of inverter current. control PWB assembly.
1) Check the connector of 1) Correct the installation.
PFCM for secure installa-
2) Connect stable power
tion.
supply.
2) Check the AC power supply
3) Replace the outdoor unit
voltage for fluctuation.
PFCM PWB or control
3) 1),2) Normal PCB assembly.
1) Check the wires between 1) Connect stable power
units. supply.
2) Check voltage between N Correct the wiring.
and 1 the indoor/outdoor
2) Replace the outdoor unit
unit terminal boards.
control PWB assembly.
3) Check the outdoor unit fuse.
3) Replace the fuse/out-
4) Check 15-V,13-V and 5-V door unit control PWB
voltages on the PCB. assembly.
Check resistance between 4) Replace the outdoor unit
IPM terminals. control PWB assembly.
5) Check pins No.5 and 8 5) Replace the outdoor unit
of connector CN3 of the fan motor.
outdoor unit fan motor for
6) Replace the outdoor unit
shortcircuit.
control PWB.
6) Outdoor unit control PCB.
Check the wiring between Correct the wiring.
units.
Check the wiring between Correct the wiring.
units.
1) Replace the indoor fan
proper rotating operation. motor.
(Check fan lock.) 2) Replace the indoor fan
motor.
2) Check the lead wire of the
indoor fan motor for open- 3) Correct the installation
circuit. of the indoor fan motor
connector.
3) Check connector ofthe
indoor unit fanmotor for 4) Replace the indoorunit
secureinstallation. control PCB.
4) 1) 2) 3): Normal
Replace the indoor unit
control PWB.
AE-X4M30PU
Action