Toshiba Super MMU-AP0092H Service Manual page 92

n Indoor unit display part (Receiving unit) (Wireless type)
When specifying the check code, check 7-segment display on the center unit.
For the check code which is not displayed on the outdoor 7-segment, confirm it in Section
"9-2 How to Check / Check code display list (Indoor unit)".
Lamp indication
Operation Timer Ready
No indication at all
Operation Timer Ready
Flash
Operation Timer Ready
Flash
Operation Timer Ready
Alternate flash
Operation Timer Ready
Alternate flash
Check code
— Power supply OFF or miswiring between receiving unit and indoor unit
E01 Receiving error
E02 Sending error
E03 Communication interruption
E08 Duplicated indoor unit No. (Address)
E09 Duplicated header units of remote controller
E10 Communication error between MCU on indoor unit P.C. board
E12 Automatic address start error
E18 Wire connection error between indoor units, indoor power supply OFF
Miswiring or wire connection error between indoor unit and outdoor unit
E04
(Communication interruption between indoor and outdoor units)
Communication (receiving) error between indoor and outdoor units, decrease of
E06
No. of connected indoor units
E07 Communication (sending) error between indoor and outdoor units
E15 No indoor unit during setting of automatic address
E16 No. of connected indoor units, capacity over
E19 Error of No. of center unit
E20 Disagreement of refrigerant pipe communication during setting of automatic address
E23 Communication (sending) error between outdoor units
E25 Duplicated setting of follower unit address
Communication (receiving) error between outdoor units, decrease of No. of
E26
connected outdoor units
E28 Follower unit error
E31 IPDU communication error
P01 Indoor fan error
P10 Indoor overflow error
P12 Indoor fan error
P13 Outdoor unit liquid back detection error
P03 Outdoor unit discharge temp. (TD1) error
P04 Outdoor unit high pressure switch operation
P05 Outdoor unit open phase error was detected, negative phase error was detected
Outdoor unit heat sink overheat error: Heat radiation error of electric part (IGBT)
P07
in outdoor unit
P15 Gas leak was detected: Short of refrigerant charge amount
P17 Outdoor unit discharge temp. (TD2) error
P19 Outdoor unit 4-way valve inverse error
P20 High pressure protection error
P22 Outdoor unit DC fan error
P26 Outdoor unit G-Tr short-circuit error
P29 Compressor position detection circuit error
P31 Other indoor unit stopped due to error in the group.
: Goes off, : Goes on,
Cause of trouble occurrence
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Receiving unit
Miswiring or wire connection error
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between receiving unit and indoor unit
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92
: Flash (0.5 second)
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
Setup error
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