Toshiba MMY-MUP0801HT7JP, Руководство по обслуживанию

Страница: 137 / 309

7-5-2. No Remote Controller Response with Check Code
(Operation from the indoor remote controller is not accepted, and a check code is displayed on the 7-
segment display of the interface PC board of the header unit)
7-5-3. No Remote Controller Response without Check Code
(There is no display of a check code on the 7-segment display on the interface PC board of the header unit,
although there is indoor unit that is not accepting operation from the indoor remote controller)
Indoor remote
controller
status
Header unit
7-segment
display
Countermeasures Cause
No response None
The communication line is not connected between indoor
and outdoor (the unit that does not respond to the indoor
remote controller).
Improve the wiring.
Line address and indoor address are not set (the unit that
does not respond to the indoor remote controller). Set up the address.
The power of the header unit of the group is not turned on in
indoor group control (the unit that does not respond to the
indoor remote controller). Turn on the power.
Group address is set to the follower unit for individual control
(the unit that does not respond to the indoor remote
controller). Set the group address to “0” in the case of
individual control.
No display on the
indoor remote
controller (no line
is output.)
None
The power is not turned on (the unit that is not displayed on
the indoor remote controller). Turn on the power.
The indoor remote controller is not connected with a wire (the
unit that is not displayed on the indoor remote controller). Improve the wiring.
Miswiring of the indoor remote controller (the unit that is not
displayed on the indoor remote controller) Improve the wiring.
Indoor remote controller communication circuit trouble (the
unit that is not displayed on the indoor remote controller)
If 220 V is incorrectly applied to the indoor remote controller
terminal, the remote controller communication circuit fails. Remove the quick connect terminal
connected to indoor remote controller
terminals A/B, and check the voltage. If
voltage is not applied (normally 15 to 18 V),
replace the PC board.
Indoor remote
controller
status
Header unit
7-segment
display
Countermeasures Cause
No response
L08
Line addresses and indoor addresses of all the connected
indoor units are not set. Set up addresses.
There is no header unit of group control. Set up a group address.
E19 -00
Alternate
blinking
Turn on the power again. (In the order: Indoor unit power is not turned on.
indoor outdoor)
Indoor/outdoor communication line is not correctly connected
to the U1/U2 terminal of the header unit ( Fig. 1). (Indoor/
outdoor cannot communicate before address setup.) Correct wiring
When the terminator resistor (SW100 bit2) in the
communication line between indoor and outdoor
units (Uv) on the outdoor unit has not been turned
on or two or more terminator resistors have been
turned on (After address setup, when terminator
resistor setup is changed after powering-on) Check SW100 bit 1 or bit 2 of the header unit.
No connection between multiple refrigerant
lines: Turn off SW100 bit 1 and turn on bit 2.
Connection between multiple refrigerant
lines: Turn on SW100 bit 1 of only the
connected header unit for one line.
Turn on SW100 bit2 of all the header units.
* Factory default : SW100 bit 1 is off, bit 2
is off.
E19 -02
Alternate
blinking
When connecting an indoor/outdoor communication line
between outdoor units under the condition of a connected
communication line between outdoor units ( Fig. 2). Correct wiring
Turn all SW08 switches to “off.” SW08 setup trouble
E20 -01
Alternate
blinking
Address setup is performed with connecting an indoor/
outdoor communication line between outdoor units ( Fig. 3). Correct wiring
Address setup is performed under the condition of
connecting multiple refrigerant lines ( Fig. 3). Correct wiring
ON
1 2
SW100
- 137 -