MITSUBISHI ELECTRIC PE-15MYC - Manual (Page 74)

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START
POWER ON
52C1 ON
MC1 OPERATE
MF2
OPERATE
52C2 ON
MC2 OPERATE
MF3
OPERATE
26D1 4 ON
X1,2,5,6 ON
X3,4 ON (SELF HOLD)
21S4-1,2 OFF
MF2, 3 STOP
21S4-1,2 ON
MF2, 3 OPERATE
X1 6 OFF
SW1 COOL?
23WA ON?
NO
YES
NO
YES
PASS THE 3 MIN?
NO
YES
YES
YES
NO
30FZ,30CZ1,2 ON (SELF HOLD)
FZ ON
YES
52F1 ON
MF1 OPERATE
HZ1,2 ON
21S4-1,2 ON
T1,T2 ON
CZ1-2,CZ2-2 ON
TIMER 2 ON
NO
NO
CH1,2 ON
SW2 ON?
CZ1-1,CZ2-1 ON
CH 1 OFF CH 1 OFF
CH 2 OFF
52C2 ON
MC2 OPERATE
MF3
OPERATE
NO
YES
CH 2 OFF
CONDENSING
TEMP -12 ?
CONDENSING
TEMP 6 ?
26D1 4 OFF
No.1 SAFETY
DEVICE OFF?
YES
SERVICE CALL
NO
30CZ1 OFF
52C1 OFF
MC1 STOP
MF2 STOP
CH1 ON
No.2 SAFETY
DEVICE OFF?
YES
NO
30CZ2 OFF
52C2 OFF
MC2 STOP
MF3 STOP
CH2 ON
No.1 SAFETY
DEVICE OFF?
YES
SERVICE CALL
NO
30CZ1 OFF
52C1 OFF
MC1 STOP
MF2 STOP
CH1 ON
No.2 SAFETY
DEVICE OFF?
YES
NO
30CZ2 OFF
52C2 OFF
MC2 STOP
MF3 STOP
CH2 ON
52C1 ON
MC1 OPERATE
MF2
OPERATE
23WA ON?
NO
YES
CZ1-1,CZ2-1 ON
Note. When the fault of outdoor unit is occurred, the fan(MF1) of indoor unit continues to work.
But the unit doesn't work correctly (not cooling ).
Then, turn off the power supply and check outdoor unit.
When the fault of indoor unit is occurred, both indoor unit and outdoor unit is stop.
PASS THE 3 MIN?
CZ1-2,CZ2-2 ON
TIMER 2 ON
PEH-15,20MYA-EU