Mitsubishi Electric Lossnay LGH-RX5-E Series Manual page 54

Checklist of error codes displayed on PZ-60DR-E (when using M-NET), PZ-52SF-E or M-NET controllers, and LED displays(Table2-2)
LED1 LED2
Error code
(green) (red)
6600 — 6
blinks
6607 — 8
blinks
6608
0900 — —
3126 8 —
blinks
3602 3 —
blinks
4116 2 —
blinks
5101 4 —
blinks
5102 5 —
blinks
6602 — 1 to 4
blinks
6604
6603 — 5
blinks
C-54
Error
« There is another unit with the same
Multiple
address error address setting.
« Power is not supplied to Lossnay.
No ACK error
*2
« Lossnay address was changed.
No answer
« Multiple transmission cables are
error
wired using multi core cables.
(M-NET
communi-
cation
« Transmission cable is not securely connected.
error)
« The length of the transmission cable
wiring is longer than specified (longer
than maximum extension 200 m,
longer than 500 m between ends).
« Trial operation switch on the Lossnay
Lossnay trial
operation circuit board (SW2-1) is set to ON.
« When the TM3 6, 7 output setting
External
device switch (SW5-6) is ON, the following
error conditions are applied.
• OA temperature is still -10°C or lower,
60 minutes after the output started
• OA temperature is 15°C or higher with-
in 15 minutes after the output started
• OA temperature is 70°C or higher
« Damper board operation is not cor-
Damper
related rect.
error
« Connectors for the damper unit are
not correctly connected.
« The switch (SW5-10) setting is
incorrect.
« The Lossnay fan does not stop due
Fan motor
operation to a breakdown of the fan motor
drive error operation drive of the circuit board.
« Fan motor error
*1
« 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
« Controller where error originally
communi-
cation cir- occurred is defective.
cuit section
« Lossnay circuit board is defective.
error
« Power is supplied to the same trans-
Transmissi
on cable mission cable from two or more
error power supply units.
« The power supply unit is connected
to the TB3 side of the power supply
expansion unit.
« The power supply unit is connected
to the indoor and outdoor transmis-
sion cables.
Cause Action
« Check the addresses of devices in
the system.
« Check the power supply to Lossnay.
« Check the Lossnay address.
« Using suitable cables, wire the
transmission cables so that they are
separated from one another.
« Check the transmission cable connection.
« Check the length of the transmission
cable wiring. (Refer to page C-36.)
« Check the trial operation switch.
(Refer to page C-68)
« When external devices are connect-
ed, check the external devices.
« When external devices are not con-
nected, check the TM3 6, 7 output
setting switch (SW5-6). (Refer to
page C-75)
« Remove the rod, and check whether the
damper board can be moved manually.
« Check the connection of the lead wire
connectors and the circuit connector.
« Check the switch (SW5-10) setting.
(Refer to page C-72)
LGH-15 to 100 types: OFF
LGH-150 and 200 types: ON
« Check and replace the circuit board.
« Check and replace the fan motor.
« Check the connection of the lead
wire connectors and the circuit con-
nectors.
« Check the connection of the lead
wire connectors and the circuit con-
nectors.
« Check the controller where the error
occurred.
« Replace the circuit board.
« Adjust the wiring of the power sup-
ply unit.