Mitsubishi Mr.Slim MSZ-FE12NA- Manuals

5 4 OUTLINES AND DIMENSIONS Unit: inch MSZ-FE09NA MSZ-FE12NA 30-7/8 31-3/8 1/2 1-7/8 2-3/16 11 -5 /8 27-1/16 3/4 2-5/16 6-1/4 1-11/16 2-1 1 /16 2-3/16 3-15/16 1/2 10-1/8 1/4 Installation plate Piping 2-3/16 Drain hose 1-11/16 3-3/83-13/16 Air out Indoor unit 2-1/8 1-5/8 2-1/2 Installation plate 7/16...

7 7-1. TIMER SHORT MODE For service, set time can be shortened by short circuit of JPG and JPS the indoor electronic control P.C. board. The time will be shortened as follows. (Refer to 9-7.) Set time: 1-minute 1-second Set time: 3-minute 3-second (It takes 3 minutes for the compressor to start oper...

8 NOTE: • The operation settings are memorized when 10 seconds have passed after the indoor unit was operated with the remote controller. • If main power is turned OFF or a power failure occurs while AUTO START/STOP timer is active, the timer setting is cancelled. • If the unit has been off with the...

9 8 MICROPROCESSOR CONTROL WIRELESS REMOTE CONTROLLER MSZ-FE09NA MSZ-FE12NA ON TIMER button CLOCK SET button TIME SET buttons FORWARD button BACKWARD button OFF TIMER button RESET button VANE CONTROL button WIDE VANE button (Vertical vane button) AREA button i-see button i-see RESET CLOCK Signal tra...

10 8-2. DRY ( ) OPERATION (1) Press OPERATE/STOP (ON/OFF) button. POWER lamp of the indoor unit turns on with a beep tone. (2) Select DRY mode with OPERATION SELECT button.(3) The set temperature is determined from the initial room temperature. 1. Coil frost prevention Coil frost prevention is as sa...

14 Indoor unit installation location and air-conditioning area ·Be sure to set the slide switch inside the remote controller to an appropriate position in accordance with the installed position of the indoor unit. If the switch is not set correctly, the air conditioner may not function properly.(Ref...

16 (Example 1) The current time is 8:00 PM. The unit turns off at 11:00 PM, and on at 6:00 AM. • OFF timer and ON timer can be used in combination. The timer of the set time that is reached first will operate first.• “ ” and “ ” display shows the order of OFF timer and ON timer operation. PROGRAM TI...

18 9-1. CAUTIONS ON TROUBLESHOOTING 1. Before troubleshooting, check the following 1) Check the power supply voltage.2) Check the indoor/outdoor connecting wire for miswiring. 2. Take care of the following during servicing 1) Before servicing the air conditioner, be sure to turn off the unit first w...

19 Outline of the function This air conditioner can memorize the abnormal condition which has occurred once. Even though LED indication listed on the troubleshooting check table (9-4.) disappears, the memorized failure details can be recalled. This mode is very useful when the unit needs to be repai...

20 2. Indoor unit failure mode table POWER Abnormal point (Failure mode) Condition Remedy Not lighted Normal — — 1-time fl ash every 0.5-second Room temperature thermistor The room temperature thermistor short or open circuit is detected every 8 seconds during op-eration. Refer to the characteristic...

24 A Check of indoor fan motor 9-6. TROUBLESHOOTING FLOW The indoor fan motor error has occurred, and the indoor fan does not operate. Turn OFF the power supply. Is there any foreign matter that interferes the rotation of the line fl ow fan? Yes No Remove the foreign matter and adjust the line fl ow...

26 C Check of indoor electronic control P.C. board and indoor fan motor Turn OFF the power supply.Remove indoor fan motor connector CN211, vane motor connector CN151 and the i-see Sensor motor connector CN110 from the indoor electronic control P.C. board and turn ON the power supply. Does the unit o...

27 D How to check miswiring and serial signal error Turn OFF inverter-controlled lighting equipment.Turn OFF the power supply and then turn ON again.Press EMERGENCY OPERATION switch. • • • A Is serial signal error indicated 6 minutes later? B Yes Reinstall either the unit or the light away from each...

28 E Electromagnetic noise enters into TV sets or radios Yes Is the unit grounded? No Ground the unit. Yes Is the distance between the antennas and the indoor unit within 9.91 ft., or is the distance between the antennas and the outdoor unit within 9.91 ft.? No Extend the distance between the antenn...

31 MSZ-FE09NA MSZ-FE12NA NOTE: Turn OFF power supply before disassembling. OPERATING PROCEDURE PHOTOS 1. Removing the panel (1) Hold both sides of the front panel and lift the front panel until it is level. Pull the hinges forward to remove the front panel. (2) Remove the horizontal vanes.(3) Remove...

32 OPERATING PROCEDURE PHOTOS 2. Removing the electronic control P.C. board, the power monitor receiver P.C. board, i-see Sensor, SW P.C. board and the terminal block (1) Remove the panel (Refer to 1.) and the corner box.(2) Remove the screw of the conduit cover. Remove the con- duit cover and the i...

34 OPERATING PROCEDURE PHOTOS 6. Removing the horizontal vane motor (1) Remove the nozzle assembly. (Refer to 4.)(2) Remove the screws of the horizontal vane motor unit, and pull out the horizontal vane motor unit. (3) Remove the screws of the horizontal vane motor unit cover.(4) Remove the horizont...

HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN © Copyright 2009 MITSUBISHI ELECTRIC CO.,LTDDistributed in Jul. 2009. No. OBH542 5Made in Japan New publication, effective Jul. 2009Specifications subject to change without notice. TM