Mitsubishi Electric Lossnay LGH-50RVS-E Handbook page 24

No. Problem
2 "H0" is displayed on
the remote controller.
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.
5 Operations with the
remote controller
are not possible.
(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, check the following items.
No. Check item
1 Are the function selection switches
(SW2, SW5) and model selection
switch (SW6) on the Lossnay cir-
cuit board set correctly to suit the
required application?
2 When PZ-62DR-E is used, are the
function selections set correctly to
suit the required application?
3 When PZ-62DR-E is used, are icons
and characters displayed on the
PZ-62DR-E screen?
4 Is the system controller of M-NET
used?
5 Is the external input used?
6 Is the Wi-Fi interface connected?
Factor
The remote controller is starting up.
The Lossnay unit is starting up.
Faulty connection of the remote con-
troller transmission cable
The remote controller transmission
cable is connected to the terminal
block (TB5 [A] [B]) for the M-NET
transmission cable.
PZ-62DR-E is used together.
The function selection switch (SW5-9)
on the circuit board is set to ON.
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 Operating/Installation Instructions or PZ-62DR-E
Instruction Book.)
The system controller can be used to start/stop Lossnay, change
fan speed or ventilation mode, and prohibit the start/stop operation
by PZ-62DR-E.
If the interlock mode is set to "External input given priority" (func-
tion setting (No. 19) is set to "3") and if the external device is oper-
ating, the stop operation by PZ-62DR-E is prohibited.
(See the Lossnay Operating/Installation Instructions or PZ-62DR-E
Instruction Book.)
If the Remote/Local switching (CN32) is set to remote, the start/
stop operation by the Lossnay remote controller is prohibited.
(See the Lossnay Operating/Installation Instructions or PZ-62DR-E
Instruction Book.)
Priority is given to the operation by the fan speed switching input
and Bypass mode switching input. (CN17, CN26)
(See the Lossnay Operating/Installation Instructions or PZ-62DR-E
Instruction Book.)
When the Lossnay unit is operated with the MELCloud application,
the Lossnay unit operates according to the latter signal.
The remote controller displays "H0" during
start-up for a maximum of one minute.
The remote controller is not fed with power
during start-up of the Lossnay unit for a
maximum 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-62DR-E cannot be
used together.
When PZ-43SMF-E is used, set the function
selection switch (SW5-9) to OFF.
─ 24 ─
Corrective action
Notes