Mitsubishi Electronics PEH-20MYA, PE-8MYC, PE-15MYC, PE-20MYC, PE-10MYC, PEH-10MYA PEH-15,20MYA-EU

PEH-15,20MYA-EU

START

POWER ON

CH1,2 ON

30FZ,30CZ1,2 ON (SELF HOLD)

SW2	NO
	ON?
YES

FZ ON

52F1 ON

MF1 OPERATE

SW1 COOL?	NO
YES
23WA ON?	NO
YES
CZ1-1,CZ2-1 ON

52C1	ON
MC1	OPERATE
MF2	OPERATE
CH 1	OFF
CZ1-2,CZ2-2 ON
TIMER 2 ON
PASS THE 3 MIN?		NO
YES
52C2	ON
MC2	OPERATE
MF3	OPERATE
CH 2	OFF

NO	No.1 SAFETY	No.2 SAFETY	NO	NO
	DEVICE OFF?	DEVICE OFF?
	YES	YES
	30CZ1 OFF	30CZ2 OFF

HZ1,2 ON

21S4-1,2		ON
T1,T2		ON
23WA ON?			NO
YES
CZ1-1,CZ2-1 ON
52C1	ON
MC1	OPERATE
MF2	OPERATE
CH 1		OFF
CZ1-2,CZ2-2 ON
TIMER 2 ON
PASS THE 3 MIN?			NO
YES
52C2	ON
MC2	OPERATE
MF3	OPERATE
CH 2		OFF

No.1 SAFETY	No.2 SAFETY	NO
DEVICE OFF?	DEVICE OFF?
YES	YES
30CZ1 OFF	30CZ2 OFF

NO	CONDENSING
	TEMP	-12	?
		YES
	26D1	4 ON
X1,2,5,6 ON
X3,4	ON (SELF HOLD)
	21S4-1,2 OFF
	MF2, 3 STOP
NO	CONDENSING
	TEMP	6	?

52C1	OFF		52C2	OFF	52C1	OFF		52C2	OFF
MC1	STOP		MC2	STOP	MC1	STOP		MC2	STOP
MF2	STOP		MF3	STOP	MF2	STOP		MF3	STOP
CH1	ON		CH2	ON	CH1	ON		CH2	ON
		SERVICE CALL					SERVICE CALL

		YES
26D1		4 OFF
X1	6 OFF
21S4-1,2 ON
MF2, 3 OPERATE

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.

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