Mitsubishi Mr.SLIM SEZ-M25DAL Installation Manual page 19

9. Test run
9.2. Test run
9.2.1. Using wireless remote controller
[Fig. 9-1] (P.9)
Ⓐ TEST RUN button
Ⓑ MODE button
Ⓒ FAN button
Ⓓ VANE button
■ Make sure to read operation manual before test run. (Especially items to secure
safety)
① Turn on the power to the unit at least 12 hours before the test run.
② Press the TEST RUN button Ⓐ twice continuously.
(Start this operation from the status of remote controller display turned off.)
and current operation mode are displayed.
TEST RUN
[Output pattern A] Errors detected by indoor unit
Wireless remote controller
Beeper sounds/OPERATION
INDICATOR lamp flashes
(Number of times)
1 P1
2 P2, P9
3 E6, E7
4 P4
5 P5
6 P6
7 EE
8 P8
9 E4
10 –
11 –
12 Fb
14 PL
No sound – –
[Output pattern B] Errors detected by unit other than indoor unit (outdoor unit, etc.)
Wireless remote controller
Beeper sounds/OPERATION INDICATOR lamp
flashes (Number of times)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
*1 If the beeper does not sound again after the initial two beeps to confirm the self-check start signal was received and the OPERATION INDICATOR lamp does
not come on, there are no error records.
*2 If the beeper sounds three times continuously "beep, beep, beep (0.4 + 0.4 + 0.4 sec.)" after the initial two beeps to confirm the self-check start signal was
received, the specified refrigerant address is incorrect.
• On wireless remote controller
The continuous buzzer sounds from receiving section of indoor unit.
Blink of operation lamp
• On wired remote controller
Check code displayed on the LCD.
Wired remote
controller
Check code
Intake sensor error
Pipe (Liquid or 2-phase pipe) sensor error
Indoor/outdoor unit communication error
Drain sensor error
Drain pump error
Freezing/Overheating safeguard operation
Communication error between indoor and outdoor units
Pipe temperature error
Remote controller signal receiving error
–
–
Indoor unit control system error (memory error, etc.)
Refrigerant circuit abnormal
No corresponding
Indoor/outdoor unit communication error (Transmitting error) (Outdoor unit)
Compressor overcurrent interruption
Open/short of outdoor unit thermistors
Compressor overcurrent interruption (When compressor locked)
Abnormal high discharging temperature/49C worked/ insufficient refrigerant
Abnormal high pressure (63H worked)/ Overheating safeguard operation
Abnormal temperature of heat sink
Outdoor unit fan protection stop
Compressor overcurrent interruption/Abnormal of power module
Abnormality of super heat due to low discharge temperature
Abnormality such as overvoltage or voltage shortage and abnormal
synchronous signal to main circuit/Current sensor error
–
–
Other errors (Refer to the technical manual for the outdoor unit.)
③ Press the MODE button Ⓑ to activate COOL mode, then check whether cool air
is blown out from the unit.
④ Press the MODE button Ⓑ to activate HEAT mode, then check whether warm air
is blown out from the unit.
⑤ Press the FAN button Ⓒ and check whether fan speed changes.
⑥ Press the ON/OFF button to stop the test run.
Note:
• Point the remote controller towards the indoor unit receiver while following
steps ② to ⑥.
• It is not possible to run the in FAN, DRY or AUTO mode.
Symptom
Symptom
Remark
Remark
For details, check the LED
display of the outdoor controller
board.
19