Failure Mode 3: Operations On The Remote Controller Are Not Possible - Mitsubishi Electric LGH-F300RVX-E Handbook

No. Problem
3 It takes time for the
remote controller to
be fed with power
after turning the
Lossnay unit ON.
4 The inspection
number "6801" is
displayed on the
remote controller.

(3) Failure mode 3: Operations on the remote controller are not possible.

Initial Check Items
If the system cannot be operated with the remote controller after installation is completed, check the following items.
No. Check item
1 Are the function selection switch-
es (SW2, SW5, and SW7) on the
Lossnay circuit board set correctly to
suit the required application?
2 When PZ-61DR-E is used, are the
function selections set correctly to
suit the required application?
3 When PZ-61DR-E is used, are icons
and characters displayed on the PZ-
61DR-E screen?
4 Is the system controller of M-NET
used?
5 Is the external input used?
Factor
The Lossnay unit is starting up.
Faulty connection of the remote
controller transmission cable
The remote controller transmission
cable is connected to the terminal
block (TB5 [A] [B]) for the M-NET
transmission cable.
PZ-61DR-E is used together.
Depending on the settings of the function selection switches,
Lossnay may automatically operate or stop, or specific operation
may be unable to be performed with the remote controller.
Depending on the settings of the function selections, Lossnay may
automatically operate or stop, or specific operation may be unable
to be performed with the remote controller.
Based on the icon and characters, you can check statuses such
as the timer operation, Night-purge, and protective operation.
(See the Lossnay technical manual.)
The system controller can be used to start/stop Lossnay, change
fan speed or ventilation mode, and prohibit the start/stop opera-
tion by PZ-61DR-E or PZ-43SMF-E.
If the interlock mode is set to the "External input priority ON/OFF
interlock" and if the external device is operating, the stop opera-
tion by PZ-61DR-E is prohibited.
(See the Lossnay technical manual.)
If the Remote/Local switching (CN32) is set to remote, the start/
stop operation by the Lossnay remote controller is prohibited.
(See the Lossnay technical manual.)
Priority is given to the operation by the fan speed switching input
and Bypass mode switching input. (CN17, CN26)
(See the Lossnay technical manual.)
The remote controller is not fed with power
during start-up of the Lossnay unit for a maxi-
mum of one minute.
Check the items described in (1) [2].
Connect the remote controller transmission
cable to the terminal block (TM4 [1] [2]).
PZ-43SMF-E and PZ-61DR-E cannot be
used together.
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Corrective action
Notes