Mitsubishi Heavy Industries SRK25GZ-L1 Handbook page 918

FDC-HKX
e9
Error display :
7
Indoor unit
Red LED 1 time flash
Green LED Keeps flashing
Is there any
overflow?
NO
Is the float
switch tripped?
NO
Defective indoor unit PCB
Replacement (Defective DM
driving output circuit, defective
float switch input circuit)
Remark (1) If an indoor unit is stopped due to the drain error (E9), the outdoor unit fot this stopped unit will come to a normal stop immediately. Other normal indoor units of
the same refrigerant system will also come to a normal stop. Even if the swiches of remote controllers for normal indoor units are pressed, these units will come to
normal stop automatically within tens of seconds.
e10
Error display :
8
Indoor unit
Red LED Stays OFF
Green LED Keeps flashing
Are more
than 17 units connected
to a remote
controller?
Defective indoor unit PCB
Replacement
e 1 1
Error display :
9
Indoor unit
Red LED Stays OFF
Green LED Keeps flashing
Have remote control ad-
dresses been set while more
than one remote control-
lers are connected on single
line?
Defective indoor unit PCB
Replacement
(Defective unit numer input circuit)
916
[Drain trouble]
Outdoor unit
Red LED
Green LED
Is the angle of drain
YES
piping good. Is there
any problem?
YES
Repair or replace the
float switch
[Control of 1 remote controller VS multiple units
Excessive number of units (more than 17 units) ]
Outdoor unit
Red LED
Green LED
YES
Reduce to 16 units
or less
NO
Remote control addresses have been set while more than one units of remote
controller are connected.
Outdoor unit
Red LED
Green LED
YES
NO
Defective indoor unit PCB
Replacement (Defective conden-
Stays OFF
sate motor output circuit)
Keeps flashing
YES
NO
Repair
• Check DM broken wire, burning, locking.
• Are there any DM connector loose.
• Are there any PCB faston terminal loose.
• Are there any DM wires broken.
Note (1) Check if AC220/240 is between DM connection DM connectors,
between faston terminal 4 brown and 5 while.
Stays OFF
Keeps flashing
Stays OFF
Keeps flashing
Une one remote controller
only on single line.
NO
(1)
Is there output for
condensate motor
(DM)?
YES