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(2) Checklist of error codes displayed on the PZ-52SF-E, M-NET controllers, and LED
displays (Table 2-2)
LED1
LED 2
Error code
(green)
(red)
6600
—
6
blinks
6607
—
8
blinks
6608
0900
—
—
4116
2
—
blinks
3602
3
—
blinks
5101
4
—
blinks
5102
5
—
blinks
6602
—
1 - 5
blinks
6603
6604
———
—
Lit
Filter blinking
—
—
———
Lit
—
———
LED6 (red)
off
*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-200RX 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).
152
Symptom
« There is another unit with the same
Multiple
address error
address setting.
« Power supply to Lossnay is not turned on.
No ACK error
« Lossnay address was changed.
« Multiple transmission cables have
No answer
error (M-
been wired using multi core wires.
NET com-
« Transmission cable is not securely
munication
connected.
error)
« The length of wiring of the transmission
cable is longer than specifications (longer
than maximum 200 m from the power sup-
ply unit, longer than 500 m between ends).
« Trial operation switch on the Loss-
Lossnay
trial opera-
nay circuit board (SW 2-1 or SW 2-
tion
3) is set to ON.
« 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
« Error with transmission cable.
Communi-
cation cir-
« Controller where error originally
cuit sec-
occurred is defective.
tion error
« Lossnay board is defective.
« Lossnay does not have Group set-
No M-NET
connection
ting (registration) made.
information
« Interval for cleaning Lossnay air fil-
Warning to clean air
filter by comulative
ter has elapsed.
operation time
« Delayed start operation is set at the
In delayed
start oper-
function select switch (SW 5-1) on
ation
the Lossnay circuit board.
« Power supply is not supplied to the
No power
to M-NET
M-NET transmission cable.
transmis-
sion cable
« Wiring length of the transmission cable
is from the power supply unit or the out-
door unit is longer than specification
(maximum extension 200 m).
Cause
Corrective action
« Check the addresses of devices in
the system.
« 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. (refer to page 165)
« Check the length of the transmis-
sion cable wiring.
« Check the trial operation switch.
(refer to page 169)
« Replace the table.
« Remove the load and check or
move the damper board by hand.
« Check the connection of the lead wires
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.
« Check transmission cable relations.
« Check the controller where the error
occurred.
« Replace the circuit board.
« Check the Lossnay address and con-
firm that the group setting is made.
(refer to page 179 or "15. Appendix")
« After cleaning the air filter press the
"Filter" button on the remote con-
troller 2 times.
« There is no error.
« Check the connection of the power
supply unit, outdoor unit and trans-
mission cable.
« Check the length of the transmis-
sion cable wiring.
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