Fault Code Display Information - Toshiba MAR-C104M8-1-PE Service Manual

The remote controller, multi controller and outdoor unit have the facility to display fault codes which are
used to determine any malfunction of the system.
• The remote controller is provided with a "check" button and a check display.
• The multi controllers and outdoor units are provided with display switches and LED displays.
Initially malfunctions can be identified from the remote controller check display.
Details of the multi controller and outdoor unit malfunctions can be determined from their control boards.
(Multi controller malfunctions are also displayed on the outdoor unit interface control board).
8.1 Fault code identification.
When a malfunction has been identified, do not reset the system. Press the "CHECK" button on the remote
controller and observe the display.
The location and cause of the malfunction can be determined from the fault code.
"CHECK"
Flashes when
phases are rotated.

8. FAULT CODE DISPLAY INFORMATION

MODE FAN CENTRAL
FAN ONLY AUTO OPERATION
COOL HIGH STANDBY
MED PREHEAT
HEAT LOW DEFROST
AUTO FILTER
TEMP CHECK LOUVER
UNIT MANUAL
˚ C
88
TIMER CONT. OFF ON ADDRESS
88 : 88
H M
"STANDBY" displayed
• The total capacity rank settings of indoor units connected exceeds
the allowable level, or an indoor capacity rank is set at "0"
(Multi controller).
• For the 2-Pipe MAR-M104HTM8-1-PE heating operation has priority
over cooling.
In the event of an indoor unit requesting cooling operation when
another is in heating mode.
"STANDBY" will be displayed.
NETWORK
REMOTE CONTROLLER
MODE
-
+
TIMER ADJUST
CHECK FILTER
ON/OFF
Reset button
• Pressing the reset button with a pin will clear the memory.
Check button
• Pressing for 1 second will display fault codes.
• Pressing for 5 seconds will reset the indoor unit microprocessor.
• Pressing for 10 seconds will clear only the fault codes.
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