Read Sharp AE-XM24CR (serv.man9) Service Manual online
42
AY-XM7/9/12CR
AY-XPM7/9/12CR
AE-XM18/24CR
AY-XPM7/9/12CR
AE-XM18/24CR
8
9
10
11
12
Compressor ia stopped, if heat
exchanger or outdoor thermistor
shorts.
Close the expansion valve of the
corresponding room, if some
suction thermistor shorts.
exchanger or outdoor thermistor
shorts.
Close the expansion valve of the
corresponding room, if some
suction thermistor shorts.
Compressor is stopped, if
compressor or heat exchanger or
outdoor thermistor opens.
Close the expansion valve of the
corresponding room, if some
suction thermistor shorts. opens.
compressor or heat exchanger or
outdoor thermistor opens.
Close the expansion valve of the
corresponding room, if some
suction thermistor shorts. opens.
Compressor is stopped, if the
operating frequency is above 70Hz
and the compressor current is
below 0.8A.
operating frequency is above 70Hz
and the compressor current is
below 0.8A.
INDOOR
If open, while timer LED blinks,
operation is continued.
If short, operation is continued.
OUTDOOR
Closes the expansion valve of the
corresponding room if the
outdoor unit does not receive a
serial signal from one or more
indoor unit for 30 seconds.
Compressor is stopped, if the
outdoor unit does not receive a
serial signal from all indoor units.
If open, while timer LED blinks,
operation is continued.
If short, operation is continued.
OUTDOOR
Closes the expansion valve of the
corresponding room if the
outdoor unit does not receive a
serial signal from one or more
indoor unit for 30 seconds.
Compressor is stopped, if the
outdoor unit does not receive a
serial signal from all indoor units.
Compressor is stopped, and
miswiring check operation ends.
miswiring check operation ends.
Thermistor
short
short
Thermistor
open
open
AC
abnormal
current
abnormal
current
Serial signal
error
error
Miswiring
check error
check error
When the room
is activated
turns ON and
the compressor
starts.
is activated
turns ON and
the compressor
starts.
When the room
turns ON
and the
compressor
starts.
turns ON
and the
compressor
starts.
During
compressor
operation
compressor
operation
During
operation
operation
During
miswiring
operation
miswiring
operation
Operation OFF
Operation OFF
Automatically
restarts after safety
time(90 seconds)
restarts after safety
time(90 seconds)
Automatically
restarts as soon as
the serial
communication
becomes possible.
restarts as soon as
the serial
communication
becomes possible.
Miswiring check
operation will not
restart automatically.
operation will not
restart automatically.
1 time
Yes
Yes
1 time
Yes
Yes
8 times
Yes
Yes
No limit
Yes
Yes
8 times
Yes
Yes
13
Lowers the operating frequency if
the temperature of any of indoor
heat exchanger rises high
temperature during heating.
Stops the compressor if the
temperature srays high for 1 minute
at minumum frequency.
the temperature of any of indoor
heat exchanger rises high
temperature during heating.
Stops the compressor if the
temperature srays high for 1 minute
at minumum frequency.
Indoor heat
exchanger
overheat
prevention
control
exchanger
overheat
prevention
control
During
compressor
operation
compressor
operation
Automatically
restarts after
safety time.(90 sec.)
restarts after
safety time.(90 sec.)
Automatically
restarts after
safety time.(90 sec.)
restarts after
safety time.(90 sec.)
Automatically
restarts after
safety time.(90 sec.)
restarts after
safety time.(90 sec.)
No limit
No
No
14
When a power factor module error
input is detected.
input is detected.
Power factor
module
(Active filter)
error
module
(Active filter)
error
During
compressor
operation
compressor
operation
During
compressor
operation
compressor
operation
8 times
Yes
Yes
15
In the case that the feed back signal
from the compressor is not input or
abnormal.
from the compressor is not input or
abnormal.
DC
Compressor
rotation
error
Compressor
rotation
error
8 times
Yes
Yes
NO. Function
Operation
Description
Detection time Restarts condition Restarts
time
In
door
door
Out
door
door
Display
