Mitsubishi Electric LGH-F300RX3-E Handbook page 15

1Checklist of error codes displayed on the PZ-41SLB and LED displays (Table 2-1)
LED1 LED 2
Error code
(green) (red)
LC 6608 — —
RC6608 — —
SRC 6608
LC 0900 — —
SLC 0900
LC 4000 2 —
blinks
SLC 4000
LC 3602 3 —
blinks
SLC 3602
LC 5101 4 —
blinks
SLC 5101
LC 5102 5 —
blinks
SLC 5102
——— 9 —
blinks
"Filter" blink- — —
ing
"HO" blinking blink- —
ing
*1 LC: Lossnay set to Main SLC: Lossnay set to Sub RC, SRC: remote controller (PZ-41SLB-E)
*2 Because the LGH-F1200RX type is loaded with 2 control circuit units, "SLC" may display even with only 1 Lossnay.
When "SLC" displays, check and perform maintenance on the upper side circuit.
Symptom
« When using multiple Lossnay units, the
Lossnay
communi- main/sub setting has not been made
cation for the second unit and following units.
error
« Multiple transmission cables have
been wired using multi core wires.
« Transmission cable and power cable
are too close.
« Transmission cable is not securely
connected.
« The length of wiring of the transmis-
sion cable is longer than specifica-
tion (longer than 1640 ft).
« Multiple transmission cables have
Communica
tion error been wired using multi core wires.
between
« Transmission cable and power sup-
remote con-
ply cable are too close.
trollers
« Transmission cable is not securely
(when 2
connected.
remote con-
« The length of wiring of the transmis-
trollers are
sion cable is longer than specifica-
connected)
tion (longer than 1640 ft).
« Trial operation switch on the
Lossnay
trial opera- Lossnay circuit board (SW 2-1 or
tion SW 2-3) is set to ON board.
« Lossnay fan will not stop.
Fan motor
operation
device error
« Damper board operation is not cor-
Damper
related rect.
error
« Connectors for the damper unit are
not correctly connected.
« Connectors for the thermistor are
OA thermis-
tor related not correctly connected.
error
« Connectors for the thermistor are
RA thermis-
tor related not correctly connected.
error
« Multiple transmission cables have
Remote
controller been wired using multi core wires.
communi-
« Transmission cable and power sup-
cation
ply cable are too close.
error
« Transmission cable is not securely
connected.
« The length of wiring of the transmis-
sion cable is longer than specifica-
tion (longer than 1640 ft).
« Interval for cleaning Lossnay air fil-
Warning to clean air
filter by comulative ter has elapsed.
operation time
« LED1 blinks at 1 second intervals during
System is
starting starting operation (maximum of 45 seconds.)
Cause
— 15 —
Corrective action
« Turn off the main power supply and set
the Main/Sub switch (SW1) (first unit to
main, second and following units to sub).
« Wire the transmission cable away
from the other transmission cable.
« Wire the transmission cable at least 5
cm away from the power supply cable.
« Check the transmission cable con-
nection.
« Check the length of the transmission
cable wiring.
« Wire the transmission cable away
from the other transmission cable.
« Wire the transmission cable at least 5
cm away from the power supply cable.
« Check the transmission cable con-
nection.
« Check the length of the transmission
cable wiring.
« Check the test operation switch.
« Replace the table.
« Remove the load and check or
move the damper board by hand.
« Check the connection of the lead wire's
connectors and the circuit connector.
« Check the connection of the lead
wires connectors and the circuit
connector.
« Check the connection of the lead
wires connectors and the circuit
connector.
« Wire the transmission cable away
from the other transmission cable.
« Wire the transmission cable at least 5
cm away from the power supply cable.
« Check the transmission cable con-
nection.
« Check the length of the transmission
cable wiring.
« After cleaning the air filter press the
"Filter" button on the remote con-
troller 2 times.
« There is no error.