Sharp AY-XP24PU Service Manual page 16

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Indoor and 2-time
O O O O O Timer (Orange)
outdoor units
do not
operate.
Indoor unit O O O O O Timer (Orange)
operates.
Outdoor
unit does
not operate
O O O O O Timer (Orange)
temporarily
O O O O O Timer (Orange)
O O O O O Timer (Orange)
O
Indoor and O O O O O
outdoor
units do not
O
operate.
3-time O O O O O
Indoor unit
operates.
Outdoor
unit does
not operate
temporarily.
Indoor and 5-time O O O O O Timer (Orange)
outdoor
O
units do not
operate.
O O O O O Timer (Orange)
O
O O O O O Timer (Orange)
O
O O O O O Timer (Orange)
O
O O O O O Timer (Orange)
O
O
O O O O O Timer (Orange)
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O Operation (Green)
Plasmacluster (Blue)
O Operation (Green)
O Plasmacluster (Blue)
O Operation (Green)
O Plasmacluster (Blue)
O Operation (Green)
O O Plasmacluster (Blue)
O Operation (Green)
Plasmacluster (Blue)
Timer (Orange)
O Operation (Green)
O Plasmacluster (Blue)
Timer (Orange)
3
Operation (Green)
O O
Plasmacluster (Blue)
5
O Operation (Green)
Plasmacluster (Blue)
O Operation (Green)
O Plasmacluster (Blue)
O Operation (Green)
O Plasmacluster (Blue)
O Operation (Green)
O O Plasmacluster (Blue)
O Operation (Green)
Plasmacluster (Blue)
O Operation (Green)
O Plasmacluster (Blue)
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0 Cycle Compressor high
temperature temperature error
1 Compressor
discharge overheat.
2 Outdoor unit heat
exchanger overheat.
3 Indoor unit heat
exchanger overheat.
4 IPM high
temperature error
5 IPM high
temperature error
Temporary stop
Dry opera-
0
tion due to dehumidi-
fying operation
0 Outdoor unit Heat exchanger
thermistor thermistor open
open-circuit circuit error
1 Outdoor temperature
thermistor open
circuit error
2 Suction thermistor
open circuit error
3 Suction thermistor
open circuit error
4 Discharge thermistor
open circuit error
5 Heat sink thermistor
open circuit error
3-2
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1) Check the outdoor unit 1) Ensure unobstructed
air outlet for blockage.
outdoor unit air
2) Check if the power
outlet.
supply voltage is AC
230V at full power. 2) Connect power
supply of proper
3) Check the pipe
voltage.
connections for
refrigerant leaks.
amount of refriger-
4) Measure resistance
ant.
of the outdoor unit
compressor thermistor. 4) Replace the outdoor
unit compressor
5) Check the expansion
thermistor assem-
valve for proper
bly.
operation.
5) Replace the expan-
sion valve coil,
expansion valve or
outdoor unit control
PCB assembly.
(Temporary stop for cycle
protection)
(Temporary stop for cycle
protection)
(Temporary stop for cycle
protection)
Measure resistance of the
heat-sink thermistor.
Replace the outdoor unit
control PCB assembly.
(Temporary stop for
cycle protection)
1) Check connector of 1) Correct the installa-
outdoor unit thermistor tion
for secure installation.
2) Replace the outdoor
2) Measure resistance of
outdoor thermistors unit thermistor
assembly.
3) Check the lead wires
3) Replace the outdoor
of thermistors on the
unit thermistor
outdoor unit control
assembly.
PCB for open-circuit.
4) 1) 2) 3):Normal
4) Replace the outdoor
unit control PWB
assembly.
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