Mitsubishi Electric MJ-E14EG-S1-IT Service Manual page 13

D E
YES
MOVE EYE operation
is abnormal
NO
F
Is the left-right swing louvre
stopped?
NO
Check the connection
between the control board
P9 connector and the
stepping motor as well as the
connector pins.
OK
Check the resistance values
between the stepping motor
connector pins.
Normal
Terminals 1-2
Terminals 1-3
342Ω to 418Ω
Terminals 1-4
Terminals 1-5
Abnormal
Open or shorted
OK
Is the operating mode the
MOVE EYE operating mode?
NO YES
Is the MOVE EYE monitor on
the control panel lit?
YES
See "LED and Monitor indicators" on page 17 of the Troubleshooting
procedure. Press the MOVE EYE switch and the DEHUMIDIFY
switch 4 times at the same time when the POWER switch is OFF,
and then set the POWER switch to ON within 2 seconds.
After it starts up, select the mode with the TIMER switch. Press the
TIMER switch 6 times to select the mode 6. (the selected mode
number is displayed in the timer display)
Check method: Cover the MOVE EYE sensor with the palm of the
hand, and check whether the humidity display shows approximately 35.
NO
Check the control board P40
connector insertion and the
connector pins
OK
Replace the move eye
OK
How to check the MOVE EYE and louvre operations: Hang a wet
towel on a wall with no window or heat source.
Run with the dehumidifi er operating mode set to LAUNDRY
operating mode. Check that the MOVE EYE monitor is lit. MOVE
EYE and louvre operation is normal if 3 minutes after it starts up,
the area where air blows out from the main unit gradually narrows
and the air hits the centre of the towel being dried.
Does the left-right swing
YES
change to Wide and Stop
swing operation?
NO
Firmly insert the
NG
connectors or connector
pins in the trouble spots
OK
Replace the stepping
NG
motor
OK
NO
MOVE EYE is OFF. Turn the POWER switch
OFF and press the MOVE EYE switch for about 3
seconds. When the detector beeps and the MOVE
EYE operating mode is set to LAUNDRY or MILDEW
GUARD, does the MOVE EYE monitor turn on?
Repair the control board
NG
P40 connector
NG
NG
Replace the control board
NG
Replace the power supply
board
YES
Normal
NG
Replace the control
board
NG
Replace the power
supply board
YES
YES
Normal
OK
OK
OK
OK
OK
NO
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