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270
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1
Error display :
E5
[Communications error during operation]
Indoor unit
Red LED
Green LED
2 time flash
Keeps flashing
Red LED
Green LED
2 time flash
Keeps flashing
Outdoor unit
Is the connection
of the signal wires at the
outdoor unit poor?
Is the connection
of the signal wires at the
indoor unit poor?
“ WAIT ”
The unit is normal.
Malfunction was due to
transient noise, etc.
See the diagnosis flowchart for
YES
(1)
(2)
NO
Correct it
Correct it
Reset the
power supply.
YES
YES
NO
“ WAIT ” (page 249)
Is the error
resolved?
Notes (1) Check for poor connections (disconnection, looseness) on the outdoor unit’s terminal block.
(2) Check for poor connections or disconnection of the signal lines between the indoor and outdoor units.
Reset the power supply.
Did it return to normal?
YES
NO
Outdoor unit’s control PCB is
faulty. (Network communications
circuit is faulty.) Replace
Malfunction is due to noise, etc.
(The outdoor unit’s CPU went
out of control due to noise during
power on.)
Indoor unit
Red LED
Green LED
2 time flash
Keeps flashing
Red LED
Green LED
Stays OFF
Keeps flashing
Outdoor unit
2
Error display :
E33
[Inverter primary current anomalous] [Only case of 151~251 models]
Indoor unit
Red LED
Green LED
Stays OFF
Keeps flashing
Red LED
1 time flash
Outdoor unit
YES
YES
YES
NO
NO
NO
Is the power supply normal?
Restore it to the
normal state.
Restore it to the
normal state.
Remove any foreign matter
such as dust or dirt.
Replace the control PCB.
Is the voltage within
the specified range?
Is there any foreign matter
such as dust or dirt on the control
PCB soldered surfaces?
Display conditions
If the inverter’s primary current exceeds the set value for 3 seconds,
the compressor stops. After a 3 minutes delay, it restarts, but when
this occurs 5 times within 60 minutes.
