Mitsubishi Electric GUG-01SL-E Installationsanleitung Seite 26

Test run (continued)
• If the unit cannot be operated properly after the above test run has been performed, refer to the following table to remove the cause.
Remote controller PZ-01RC
PLEASE WAIT
PLEASE WAIT -> Error code
Display messages do not appear
even when operation switch is
turned ON
(operation lamp does not light up).
Note
Operation is not possible for about 30 seconds after cancellation of function selection. (Correct operation)
For description of each LED (LED1, 2, 3) provided on the PCB A, refer to the following table.
LED 1 (power for microcomputer)
LED 2 (power for remote controller PZ-01RC)
LED 3 (communication between PCB A and outdoor units)
Symptom
LED 1, 2 (PCB in outdoor unit)
After LED 1, 2 are lighted, LED 2
For about 2 minutes
is turned off, then only LED 1 is
following power-on
lighted. (Correct operation)
Only LED 1 is lighted. -> LED 1,
2 blink.
After about 2 minutes
has expired following
power-on
Only LED 1 is lighted. -> LED 1, 2
blinks twice, LED 2 blinks once.
Indicates whether control power is supplied to PCB A. Make sure that this LED is
always lit.
Indicates whether power is supplied to the remote controller.
Indicates state of communication between PCB A and outdoor units. Make sure
that this LED is always blinking.
Cause
• For about 2 minutes after power-on, operation
of the remote controller is not possible due to
system start-up. (Correct operation)
• Connector for the outdoor unit's protection
device is not connected.
• Reverse or open phase wiring for the outdoor
unit's power terminal block (L1, L2, L3)
• Incorrect wiring between indoor and outdoor
units (incorrect polarity of S1, S2, S3)
• Remote controller wire short
Eng-25