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Auto Restart Function - Hitachi Mr. SLIM PEA-M200LA Installationshandbuch

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9. Test run
• If the unit cannot be operated properly after the above test run has been performed, refer to the following table to remove the cause.
Wired remote controller
PLEASE WAIT
PLEASE WAIT  Error code
Display messages do not appear
even when operation switch is
turned ON (operation lamp does
not light up).
On the wireless remote controller with conditions above, following phenomena takes place.
• No signals from the remote controller are accepted.
• OPE lamp is blinking.
• The buzzer makes a short ping sound.
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 indoor controller, refer to the following table.
LED 1 (power for microcomputer)
LED 2 (power for remote controller)
LED 3 (communication between indoor and outdoor units)

9.3. AUTO RESTART FUNCTION

Indoor controller board
This model is equipped with the AUTO RESTART FUNCTION.
When the indoor unit is controlled with the remote controller, the operation mode, set temperature, and the fan speed are memorized by the indoor controller board. The auto
restart function sets to work the moment the power has restored after power failure, then, the unit will restart automatically.
Set the AUTO RESTART FUNCTION using the remote controller. (Mode no.01)
16
Symptom
LED 1, 2 (PCB in outdoor unit)
For about 2 minutes
After LED 1, 2 are lighted, LED 2 is turned off,
following power-on
then only LED 1 is 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. Make sure that this LED is always lit.
Indicates whether power is supplied to the remote controller. This LED lights only in the case of the
indoor unit which is connected to the outdoor unit refrigerant address "0".
Indicates state of communication between the indoor 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

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Mr. slim pea-m250la

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