Toshiba MMY-MUP0721FT6P-UL Service Manual page 111

2. Notice Code Display (7-segment display) on Outdoor Interface P.C. Board
The notice codes detected or issued from the outdoor unit can be confirmed with 7-segment display on the
P.C. board.
(The notice codes detected or issued from the other outdoor unit cannot be displayed.)
(1) Displaying the notice code being issued now
Setting the SW01, SW02, SW03 to 1, 1, 14 respectively displays the notice code being issued from the
outdoor unit on the 7-segment display 7-segment display [n. 1. .
Every time SW04 is pushed for 1-second, the display changes and the second notice code or each
subsequent code is displayed (up to fifth code).
[n. 1. ] (First) to [n. 2.
(2) Displaying the notice code history
Setting the SW01, SW02, SW03 to 1, 2, 14 respectively displays the notice code history being issued from
the outdoor unit on the 7-segmen 7-segment display [h. 1.
Every time SW04 is pushed for 1-second, the display changes and the second notice code or each
subsequent code is displayed (up to tenth code history).
[h. 1. ] (First) to [h. 2.
(3) Clearing the notice code history
To clear the notice code history recorded in the outdoor unit, follow the steps below.
Set the SW01, SW02, SW03 to 2, 15, 8 respectively.
7-segment display [n. c
When SW04 is pushed and held for 5-second, the notice code histories recorded in the outdoor unit are cleared.
7-segment display [n. c C L]
3. Notice Code List
Notice code No.
Compressor maintenance
timer over
001
NFC tag wiring trouble
022
* Setting the compressor maintenance time to detect the time exceeded
Enter the compressor maintenance time to be detected as time over into Outdoor unit DN Code (O.DN) "007".
Input values ×1,000=Detection time
e.g. When O.DN [007]=20 is set
20 × 1,000=20,000 hours • • • The notice code "001" is detected and issued when the actual operation
] (Second) to • • • to [n. 5.
] (Second) • • • to [h. A.
]
Item
This notice code is detected or issued from the outdoor unit when the actual
operation cumulative time of comp.1 or comp.2 exceeds the compressor
maintenance time set.
The compressor maintenance time is not set at the factory. To use the
notice code, set the compressor maintenance time* on O.DN"007".
This notice code is detected or issued from the outdoor unit when NFC tag is
removed, failed, or cannot communicate with the outdoor interface P.C. board.
The notice code stops when NFC tag communication recovers.
(Note) A notice code [022] may be issued when connecting equipment to
CN800 of the outdoor interface P.C. board, but this is not a faulty connection
or a failure. Issuing of the notice code [022] will stop when the equipment is
removed from the CN800 and the power of the outdoor unit is turned off.
Determination of NFC tag failure should be performed in a state where no
equipment is connected to the CN800.
cumulative time of comp.1 or comp.2 will exceed 20,000 hours.
] : Notice code
] (Fifth) to [n. 1.
] : Notice code
] (Tenth) to [h. 1.
Content
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