2
Checklist of error codes displayed on the PZ-52SF-E, M-NET controllers, and LED displays (Table 2-2)
6600
Error code
—
LED1
(green)
6
blinks
LED 2
(red)
Multiple
address error
«
There is another unit with the same
address setting.
«
Check the addresses of devices in
the system.
6607
6608
—
8
blinks
No ACK error
No answer
error (M-
NET com-
munication
error)
«
Power supply to Lossnay is not turned on.
«
Lossnay address was changed.
«
Multiple transmission cables have
been wired using multi core wires.
«
Transmission cable is not securely
connected.
«
The length of wiring of the transmission
cable is longer than specifications (longer
than maximum 656 ft from the power sup-
ply unit, longer than 1640 ft between ends).
«
Check the power to the Lossnay.
«
Check the Lossnay address.
«
Wire the transmission cable away
from the other transmission cable.
«
Check the transmission cable con-
nection.
«
Check the length of the transmission
cable wiring.
0900
—
—
Lossnay
trial opera-
tion
«
Trial operation switch on the
Lossnay circuit board (SW 2-1 or
SW 2-3) is set to ON.
«
Check the trial operation switch.
4116
2
blinks
—
Fan motor
operation
device error
«
Lossnay fan will not stop.
«
Replace the table.
3602
3
blinks
—
Damper
related
error
«
Damper board operation is not cor-
rect.
«
Connectors for the damper unit are
not correctly connected.
«
Remove the load and check or
move the damper board by hand.
«
Check the connection of the lead wires
connectors and the circuit connector.
5101
4
blinks
—
OA thermis-
tor related
error
«
Connectors for the thermistor are
not correctly connected.
«
Check the connection of the lead
wires connectors and the circuit
connector.
5102
5
blinks
—
RA thermis-
tor related
error
«
Connectors for the thermistor are
not correctly connected.
«
Check the connection of the lead
wires connectors and the circuit
connector.
6602
6603
6604
—
1 - 5
blinks
Communic
ation cir-
cuit section
error
«
Error with transmission cable.
«
Controller where error originally
occurred is defective.
«
Lossnay board is defective.
«
Check transmission cable relations.
«
Check the controller where the error
occurred.
«
Replace the circuit board.
———
—
Lit
No M-NET
connection
information
«
Lossnay does not have Group set-
ting (registration) made.
«
Check the Lossnay address and con-
firm that the group setting is made.
Filter blinking
—
—
Warning to clean air
filter by comulative
operation time
«
Interval for cleaning Lossnay air fil-
ter has elapsed.
«
After cleaning the air filter press the
“Filter” button on the remote con-
troller 2 times.
———
Lit
—
In delayed
start oper-
ation
«
Delayed start operation is set at the
function select switch (SW 5-1) on
the Lossnay circuit board.
«
There is no error.
———
LED6 (red)
off
No power
to M-NET
transmis-
sion cable
«
Power supply is not supplied to the
M-NET transmission cable.
«
Wiring length of the transmission cable
is from the power supply unit or the out-
door unit is longer than specification
(maximum extension 656 ft).
«
Check the connection of the power
supply unit, outdoor unit and trans-
mission cable.
«
Check the length of the transmission
cable wiring.
Symptom
Cause
Corrective action
*1 The letters “LC” that display with the error code show a Lossnay unit type, and the number in the third column shows the
address.
*2 Because the LGH-F1200RX type is loaded with 2 control circuit units, 1 Lossnay unit has 2 addresses. Check and perform
maintenance on the table related to the address set at the address switch (SA1, SA2).
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