Mitsubishi Electric Mr. SLIM PCA-M KA Serie Manuel D'installation page 15

7. Test run
Step 5 Stop the test run.
1 Press the [ON/OFF] button to stop the test run. (The Test run menu will appear.)
Note: If an error is displayed on the remote controller, see the table below.
LCD Description of malfunction
P1 Intake sensor error
P2 Pipe sensor error (liquid pipe)
Drain float switch connector
P4
disconnected (CN4F)
P5 Drain overflow protection operation
Freezing/overheating protection
P6
operation
P8 Pipe temperature error
See the table below for the details of the LED display (LED 1, 2, and 3) on the indoor controller board.
LED 1 (microcomputer power supply)
LED 2 (remote controller power supply)
LED 3 (indoor/outdoor unit communication)
3
Fig. 7-5
B
3
5
Fig. 7-6
LCD Description of malfunction
P9 Pipe sensor error (dual-wall pipe)
PA Leakage error (refrigerant system)
Pb Indoor unit fan motor error
PL Refrigerant circuit abnormal
FB Indoor controller board error
U*, F*
(* indicates an Outdoor unit malfunction
alphanumeric Refer to the wiring diagram for the
character outdoor unit.
excluding FB.)
Indicates whether control power is supplied. Make sure that this LED is always lit.
Indicates whether power is supplied to the wired remote controller. The LED is lit only for the indoor unit that is connected
to the outdoor unit that has an address of 0.
Indicates whether the indoor and outdoor units are communicating. Make sure that this LED is always blinking.
B
A
1
2
A
1
2
4
LCD
E0 ~ E5
E6 ~ EF
7.2.2. Using wireless remote controller (Fig. 7-5)
1. Press the button 1 to stop the air conditioner.
• If the weekly timer is enabled (
it ( is off).
2. Press the button 2 for 5 seconds.
• comes on and the unit enters the service mode.
3. Press the button 2.
• B comes on and the unit enters the test run mode.
4. Press the following buttons to start the test run.
: Switch the operation mode between cooling and heating and start the test run.
: Switch the fan speed and start the test run.
: Switch the airflow direction and start the test run.
: Switch the louver and start the test run.
: Start the test run.
5. Stop the test run.
• Press the button 1 to stop the test run.
• After 2 hours, the stop signal is transmitted.
7.2.3. Using SW4 in outdoor unit
Refer to the outdoor unit installation manual.
7.3. Self-check
7.3.1. Wired remote controller
■ Refer to the installation manual that comes with each remote controller for details.
7.3.2. Wireless remote controller (Fig. 7-6)
1. Press the button 1 to stop the air conditioner.
• If the weekly timer is enabled (
it ( is off).
2. Press the button 2 for 5 seconds.
• A comes on and the unit enters the self-check mode.
3. Press the button 5 to select the refrigerant address (M-NET address) B of the
indoor unit for which you want to perform the self-check.
4. Press the button 4.
• If an error is detected, the check code is indicated by the number of beeps from
the indoor unit and the number of blinks of the OPERATION INDICATOR lamp.
5. Press the button 1.
• A and the refrigerant address (M-NET address) B go off and the self-check
is completed.
Description of malfunction
Communication error between the
remote controller and the indoor
unit
Communication error between the
indoor unit and the outdoor unit
is on), press the button 3 to disable
is on), press the button 3 to disable
13
en