Operation Manual

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90
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When converter output current which exceeds
setting value is detected. (Compressor stops.)
When discharge pipe sensor value exceeds setting
value.
(Compressor Stops.)
When the decision speed is 30 rps or less and the
current save has operated. (Compressor stops)
Overload operation
Overcharge
Gas shortage
Defective discharge pipe sensor
If serial signal cannot be sent or received for 1
minute and 55 seconds continuously.
Defective power supply
Broken signal wire
Defective indoor/outdoor unit
circuit boads.
Defective compressor
Defective outdoor PCB
When the motor for the compressor does not turn
1/12 revolution 0.044 second after it has been started.
Broken wired remote control wire
Defective indoor unit boards
Compressor locking
Open phase on compressor output
Shortcircuit on power transistor
When an error with the outdoor unit causes an
error stop, or when the input current is measured
at 1 A or less for 3 continuous minutes or more.
(Compressor is stopped.)
Defective power transistor.
Broken compressor wire
Compressor blockage
The wired remote control wire Y is open. The wired
remote control wires X and Y are reversely connected.
Noise is penetrating the wired remote control lines. The
wired remote control or indoor control PCB is faulty.
(The communications circuit is faulty.)
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Current cut
Over heat of compressor
Current safe stop
Error of signal trans-
mission
Compressor lock
Error of wired
remote control wiring
Trouble of outdoor
unit
Comes
on
Comes
on
Comes
on
Comes
on
Comes
on
Comes
on
Comes
on
2 time
flash
1 time
flash
2 time
flash
3 time
flash
4 time
flash
5 time
flash
6 time
flash
7 time
flash
2 time
flash
1 time flash
2 time flash
3 time flash
4 time flash
5 time flash
6 time flash
Comes on
7 time flash
E42
E59
E58
E41
E36
E5
E48
E60
E1
Indoor unit
indicator
Outdoor unit
indicator
(LED E)
Wired remote
control display
(optional parts)
Description of
trouble
Cause Conditions of flashing
RUN
light
TIMER
light
When there is an emergency stop caused by
trouble in the outdoor unit, or the input current
value is found to be lower than the set value
continuously for 3 minutes or longer.
(The air conditioner stops.)
• Broken power transistor
Power transistor
error
When the outdoor unit’s fan motor sped continues
for 30 seconds or longer at 75 rpm or lower.
(3 times) (The air conditioner stops.)
• Defective fan motor, poor
connector connection
Outdoor fan
motor error