Mitsubishi Electric Mr.Slim SEZ-M25DA2 Manual De Instalación página 22

9. 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.
• For description of each check code, refer to the following table.
Check code
P1 Intake sensor error
P2, P9 Pipe (Liquid or 2-phase pipe) sensor error
E6, E7 Indoor/outdoor unit communication error
P4 Drain sensor error
P5 Drain pump error
PA Forced compressor error
P6 Freezing/Overheating safeguard operation
EE Communication error between indoor and outdoor units
P8 Pipe temperature error
E4 Remote controller signal receiving error
Fb Indoor unit control system error (memory error, etc.)
PL Refrigerant circuit abnormal
E0, E3 Remote controller transmission error
E1, E2 Remote controller control board error
E9 Indoor/outdoor unit communication error (Transmitting error) (Outdoor unit)
UP Compressor overcurrent interruption
U3, U4 Open/short of outdoor unit thermistors
UF Compressor overcurrent interruption (When compressor locked)
Abnormal high discharging temperature/49C worked/insufficient refrigerant
U2
U1, Ud Abnormal high pressure (63H worked)/Overheating safeguard operation
U5 Abnormal temperature of heat sink
U8 Outdoor unit fan safeguard stop
U6 Compressor overcurrent interruption/Abnormal of power module
U7 Abnormality of super heat due to low discharge temperature
U9, UH Abnormality such as overvoltage or voltage shortage and abnormal synchronous signal to main circuit/
Current sensor error
Others Other errors (Refer to the technical manual for the outdoor unit.)
• On wired remote controller
Check code displayed in the LCD
9.2.2. Using wireless remote controller (SEZ-M-DAL2 Series)
■ Test run [Fig. 9-2-3] (P.10)
button ① to stop the air conditioner.
1. Press the
• If the weekly timer is enabled (
button ② for 5 seconds.
2. Press the
• comes on and the unit enters the service mode.
button ② .
3. Press the
Ⓑ 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.
: S witch 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.
button ① to stop the test run.
• Press the
• After 2 hours, the stop signal is transmitted.
■ Self-check [Fig. 9-2-4] (P.10)
button ① to stop the air conditioner.
1. Press the
• If the weekly timer is enabled (
button ② for 5 seconds.
2. Press the
Ⓐ comes on and the unit enters the self-check mode.
•
button ⑤ to select the refrigerant address (M-NET address) Ⓑ of the indoor unit for which you want to perform the self-check.
3. Press the
button ④ .
4. Press the
• 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.
button ① .
5. Press the
Ⓐ and the refrigerant address (M-NET address) Ⓑ go off and the selfcheck is completed.
•
22
Symptom
button ③ to disable it (
is on), press the
button ③ to disable it (
is on), press the
is off).
is off).
Remark
For details, check the LED display
of the outdoor controller board.