Mitsubishi Electric LGH-F300RX3-E Handbook page 18

Symptom
No.
2 Displays "HO" and does
not start.
3 Cannot register the
Lossnay from the remote
controller or the con-
troller.
4 Starts or stops, or the dis-
play changes, by itself.
5 Displays a error code that
is not in the checklist.
6 Cannot stop the Lossnay
with the remote controller
(display shows "Central").
Cause
« It is less than 10 minutes since the power was
supplied to the system.
« Group setting (registration) has not been
made.
« Remote control address has not been registered
in the group setting by the centralised controller.
« Power supply to the Lossnay is not turned on.
« Lossnay is connected to a power supply with a
rating outside specification.
« Lossnay transmission cable connection termi-
nal is wrong.
« Lossnay address was changed.
« Lossnay board was changed.
« The length of wiring of the transmission cable is longer
than specifications (longer than maximum 656 ft from the
power supply unit, longer than 1640 ft between ends).
« Power supply to the Lossnay is not turned on.
« Lossnay is connected to a power supply with a
rating outside specification.
« Transmission cable to the Lossnay is not con-
nected.
« Lossnay transmission cable connection termi-
nal is wrong.
« Lossnay address is wrong.
« The length of wiring of the transmission cable is longer
than specifications (longer than maximum 656 ft from the
power supply unit, longer than 1640 ft between ends).
« Set for interlocked operation with City Multi.
« Letters on the remote controller LCD are dim.
« "Cancel Operation" setting is made from the
MELANS.
« External priority ON/OFF setting is made.
« Remote/nearby switch input (CN32) is set to
"Remote."
— 18 —
Corrective action
« After supplying power to the sys-
tem, HO blinks for a maximum of
about 10 minutes.
(This is not an error.)
« Make the group setting (registra-
tion). If using a system with a cen-
tralised controller, register at the
centralised controller. If there is only
the Lossnay remote controller, reg-
ister at the remote controller.
« Check the group setting at the
MELANS.
« Check the power supply to the
Lossnay.
« Check the power supply.
« Check the transmission cable
connection (connected to
of terminal unit TB5 on the
Lossnay board).
« Check the Lossnay address.
« If the board has been replaced,
reset the group settings.
« Check the length of the trans-
mission cable wiring.
« Check the power supply to the
Lossnay
« Check the power supply.
« Check the transmission cable
connection.
« Check the transmission cable
connection (connected to
of terminal unit TB5 on the
Lossnay table).
« Check the Lossnay address.
« Check the length of the trans-
mission cable wiring.
« Cancel interlocked operation set-
ting.
« Replace the remote controller.
« Check the settings of the
MELANS.
« Check the interlocked operation
mode setting.
« Check the remote/nearby
change input (CN32).
,
A B
,
A B