Toshiba MML-AP0074BH1-E, Installation Manual

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Check method
On the wired remote controller, central control remote controller and the interface P.C. board of the outdoor unit (I/F), a check display LCD (Remote controller) or 7-segment display (on the outdoor interface P.C. board) to display the operation
is provided. Therefore the operation status can be known. Using this self-diagnosis function, a trouble or position with error of the air conditioner can be found as shown in the table below.
Check code list
The following list shows each check code. Find the check contents from the list according to part to be checked.
• In case of check from indoor remote controller: See “Wired remote controller display” in the list.
• In case of check from outdoor unit: See “Outdoor unit 7-segment display” in the list.
• In case of check from indoor unit with a wireless remote controller: See “Sensor block display of receiving unit” in the list.
: Lighting, : Flashing, : Goes off
IPDU: Intelligent Power Drive Unit
ALT: Flashing is alternately when there are two flashing LED.
SIM: Simultaneous flashing when there are two flashing LED.
Check code Wireless remote controller
Check code name Judging device
Wired remote controller
display
Outdoor unit 7-segment display Sensor block display of receiving unit
Auxiliary code Operation Timer Ready Flash
E01 — —
Communication error between indoor unit and remote controller (Detected at remote
controller side)
Remote controller
E02 — — Remote controller transmission error Remote controller
E03 — —
Communication error between indoor unit and remote controller (Detected at indoor
unit side)
Indoor unit
E04 — —
Communication circuit error between indoor / outdoor unit (Detected at indoor unit
side)
Indoor unit
E06 E06
No. of indoor units in which sensor has been
normally received
Decrease of No. of indoor units I/F
— E07 —
Communication circuit error between indoor / outdoor unit (Detected at outdoor unit
side)
I/F
E08 E08 Duplicated indoor unit addresses Duplicated indoor unit addresses Indoor unit • I/F
E09 — — Duplicated master remote controllers Remote controller
E10 — — Communication error between indoor unit MC Indoor unit
E12 E12
01: Indoor / Outdoor units communication
02: Outdoor / Outdoor units communication
Automatic address start error I/F
E15 E15 — No indoor unit during automatic addressing I/F
E16 E16
00: Capacity over
01 ~: No. of connected units
Capacity over / No. of connected indoor units I/F
E18 — — Communication error between header and follower units Indoor unit Indoor unit
E19 E19
00: No header
02: Two or more header units
Outdoor header units quantity error I/F
E20 E20
01: Outdoor unit of other line connected
02: Indoor unit of other line connected
Other line connected during automatic address I/F
E21 E21
02: No header unit
00: Multiple number of header units
Error in number of heat storage master units I/F
E22 E22 — Reduction in number of heat storage units I/F
E23 E23 —
Sending error in communication between outdoor units
Error in number of heat storage units (trouble with reception)
I/F
E25 E25 — Duplicated follower outdoor addresses I/F
E26 E26
No. of outdoor units which received signal
normally
Decrease of No. of connected outdoor units I/F
E28 E28 Detected outdoor unit number Follower outdoor unit error I/F
E31 E31 Number of IPDU (*1) IPDU communication error I/F
113-EN 114-EN
+00EH99887301-1_01EN.book Page 57 Monday, September 12, 2016 11:18 AM