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33
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Indoor unit
Red LED
Green LED
Stays OFF
Keeps flashing
Red LED
1 time, 2 time, 3 time flash
Outdoor unit
NO NO
NO
NG
YES
Check of power supply
Replacement
compressor
Replacement
compressor
OK
Check the refrigerant level
and refrigerant circuit.
Inverter
NG
Inverter
OK
Check
the compressor’s
insulation resistance
and winding
resistance.
Check of
power transistor
module
(Reference to 160)
Is the balance
pressure appropriate
during starting?
Is the power
supply voltage
correct proper?
(1)
YES
Carry out test operation
(starting) another 2 or 3 times.
Did it improve?
Replacement
control PCB
17
[Abnormalities in compressor starting] (Only case of 151~251 type)Error display :
e59
● Display conditions
(1) If it won’t start 2 times out of 7 attempted starts.
(2) Remote controller reset is possible after 3 minutes have passed.
Note (1) If the test operation is repeated 2 or 3 times, the liquid re-
frigerant inside the compressor may be expelled from the
compressor may recover from its starting abnormality.
NO (E59) It does. It does.
It
doesn’t.
It
doesn’t.
E59 diagnosis E42 diagnosis Compressor check
It doesn’t
recur.
E60 recurs.
Does the
compressor make
any abnormal
noise?
Does it
return to normal
when the power
is reset?
Does E42 occur?
Again
Operation
Does the compressor
start?
YES
Replacement
control PCB
It is possible that
transient noise
could be causing
malfunction. If
there is a noise
source, take coun-
termeasures to
prevent it.
Indoor unit
Red LED
Green LED
Stays OFF
Keeps flashing
Red LED
1 time flash
Outdoor unit
18
[Compressor loader position detection error] (Only case of 151~251 type)Error display :
e60
Note (1) Check if the power supply system is normal.
● Display conditions
(1) If a rotor position detection operation is conducted, then the rotor position cannot be detected again after that (4 times in 15
minutes), an abnormal state is displayed.
(2) After 3 minutes passes, it is reset with the remote controller is possible.