Mitsubishi Electric Lossnay LGH-100RX4-E, Handbook

Page: 27 / 76

Error code
*1
LED1
(green)
LED 2
(red)
———
*2
8
blinks
— Pre-heat
error
«
In order that the OA temperature
might not rise up, intermittent opera-
tion started.
«
After turning ON the pre-heat output
(X8), when the OA temperature
becomes larger than 15
˚C within
15 minutes.
«
SW5-6 ON without preheating
installation
«
Check whether the heater power is
supplied. Check whether the wiring
is correct. If not above-mentioned,
the heater capacity is too small. The
heater capacity needs to be looked
again.
«
Since the heater capacity is too large,
the OA temperature rises up too
much. The heater capacity needs to
be looked again.
«
Turn SW5-6 OFF, when no preheat-
ing installation.
——— 9
blinks
— Remote
controller
communi-
cation
error
«
Multiple transmission cables have
been wired using multi core wires.
«
Transmission cable and power sup-
ply 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 500 m).
«
Wire the transmission cable away
from the other transmission cable.
«
Wire the transmission cable at least 5
cum away from the power supply
cable.
«
Check the transmission cable con-
nection.
«
Check the length of the transmission
cable wiring.
“Filter” blink-
ing
— — Warning to clean air
filter by cumulative
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.
“HO” blinking blink-
ing
— System is
starting
«
LED1 blinks at 1 second intervals during
starting operation (maximum of 45 seconds.)
«
There is no error.
Symptom Cause Corrective action
*1 LC: Lossnay set to Main SLC: Lossnay set to Sub RC, SRC: remote controller (PZ-41SLB-E)
*2 The error message is NOT displayed for the PZ-41SLB-E Lossnay remote controller.
—27—
2
Checklist of error codes displayed on the PZ-52SF-E, M-NET controllers, and LED displays(Table2-2)
Error code
*1
LED1
(green)
LED 2
(red)
Symptom Cause Corrective action
6600 — 6
blinks
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 200 m from the power sup-
ply unit, longer than 500 m 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.