Mitsubishi Electric LGH-F300RX5-E1 Handbook page 46

Checklist of error codes displayed on PZ-60DR-E ( when using M-NET ) , M-NET controllers, and LED displays ( Table 2-2 )
Error code LED1 LED2
( green ) ( red )
6600 6
blinks
6607 8
6608 blinks
0900
3126 8
blinks
3602 3
blinks
4116 2
blinks
5101 4
blinks
5102 5
blinks
6602 1 to 4
6604 blinks
Error
Multiple
There is another unit with the same
address error
address setting.
No ACK error
Power is not supplied to Lossnay.
*2
Lossnay address was changed.
No answer
Multiple transmission cables are
error
wired with multi core cables.
( M-NET
commu-
Transmission cable is not securely
nication
connected.
error )
The length of the transmission
cable wiring is longer than specified
( longer than maximum extension
219 yd. (200 m), longer than 547
yd. (500 m) between ends ) .
Lossnay trial
Trial operation switch on the Lossnay
circuit board ( SW2-1 ) is set to ON.
operation
External
When the TM3 6, 7 output set-
device error
ting switch ( SW5-6 ) is ON, the
following conditions are applied.
• OA temperature is still 14°F
(-10°C) or lower, 60 minutes after
the output started
• OA temperature is 59°F (15°C) or
higher within 15 minutes after the
output started
• OA temperature is 158°F (70°C)
or higher
Damper re-
Damper board operation is not
lated error
correct.
Connectors for the damper unit
are not correctly connected.
The switch ( SW5-10 ) setting is
incorrect.
Fan motor
The Lossnay fan does not stop due
operation
to a breakdown of the fan motor
drive error
operation drive of the circuit board.
*1
Fan motor error
OA thermis-
Connectors for the thermistor are
tor related
not correctly connected.
error
RA thermis-
Connectors for the thermistor are
tor related
not correctly connected.
error
Communication
Controller where error originally
circuit section
occurred is defective.
error
Lossnay circuit board is defective.
Cause
─ 46 ─
Action
Check the addresses of devices in
the system.
Check the power supply to Lossnay.
Check the Lossnay address.
Use suitable cables to wire the
transmission cables so that they
are separated from one another.
Check the transmission cable con-
nection.
Check the length of the transmis-
sion cable wiring. ( See the techni-
cal manual for details about the
regulations. )
Check the trial operation switch.
( Refer to page 30 )
When external devices are con-
nected, check the external devices.
When external devices are not
connected, check the TM3 6, 7
output setting switch ( SW5-6 ) .
( Refer to page 30 )
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 ) set-
ting. ( Refer to page 31 )
LGH-F300 to F600 types: OFF
LGH-F1200 type: ON
Check and replace the circuit
board.
Check and replace the fan motor.
Check the connection of the lead
wire connectors and the circuit
connectors.
Check the connection of the lead
wire connectors and the circuit
connectors.
Check the controller where the er-
ror occurred.
Replace the circuit board.