Mitsubishi Electric M-SERIES, Руководство пользователя

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WALL-MOUNTED Inverter Heat Pump
M series
TROUBLESHOOTING
W
ALL-
MOUNTED
C-160
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 disappears, the memorized failure details can be recalled.
Failure mode recall function
Flow chart of failure mode recall function for the indoor/outdoor unit
MUZ-FD25VA MUZ-GE25VA MUZ-GE42VA MUZ-GE60VA MUZ-HC25VA
MUZ-FD25VABH MUZ-GE25VAH MUZ-GE42VAH MUZ-GE71VA MUZ-HC35VA
MUZ-FD35VA MUZ-GE35VA MUZ-GE50VA MUZ-HC35VAB
MUZ-FD35VABH MUZ-GE35VAH MUZ-GE50VAH
MUZ-FD50VA
MUZ-FD50VAH
NOTE: 1. Make sure to release the failure mode recall function once it is set up, otherwise the unit cannot operate properly.
2. If the abnormal condition is not deleted from the memory, the last abnormal condition is kept memorized.
Does POWER ( MSZ-FD )/the upper ( MSZ-GE , MSZ-HC )
lamp of OPERATION INDICATOR lamp on the indoor unit
blink at the interval of 0.5 seconds?
Blinks: Either indoor or outdoor unit is abnormal.
Beep is emitted at the same timing as the blinking of
POWER ( MSZ-FD )/the upper ( MSZ-GE , MSZ-HC )
lamp of OPERATION INDICATOR lamp. 2
Indoor unit is normal.
But the outdoor unit might be
abnormal because there are some
abnormalities that can not be
recalled with this way.
Confirm if outdoor unit is abnormal
according to the detailed outdoor
unit failure mode recall function.
No
Yes
The cause of abnormality cannot be found because the abnormality does not recur.
Setting up the failure mode recall function
Turn ON the power supply.
<Preparation of the remote controller>
While pressing both OPERATION SELECT button and TOO COOL button ( MSZ-
FD, MSZ-GE25/35/42/50 )/TEMP button ( MSZ-GE60/71 ) on the remote control-
ler at the same time, press RESET button.
First, release RESET button.
And release the other two buttons after all LCD in operation display section of the
remote controller is displayed after 3 seconds.
Press OPERATE/STOP (ON/OFF) button of the remote controller (the set tempera-
ture is displayed) with the remote controller headed towards the indoor unit. 1
Judgment of indoor/outdoor abnormality
Before blinking, does POWER ( MSZ-FD )/the upper ( MSZ-GE ,
MSZ-HC ) lamp of OPERATION INDICATOR lamp stay ON for
3 seconds?
Stays ON for 3 seconds (without beep):
The outdoor unit is abnormal.
The indoor unit is abnormal.
Check the blinking pattern, and confirm the abnormal point with the indoor unit
failure mode table.
Make sure to check at least 2 consecutive blinking cycles. 2
Releasing the failure mode recall function
Release the failure mode recall function by the following procedures.
Turn OFF the power supply and turn it ON again.
Press RESET button of the remote controller.
The outdoor unit is abnormal.
Check the blinking pattern, and confirm the abnormal point with the
outdoor unit failure mode table.
Make sure to check at least 2 consecutive blinking cycles. 3
Repair the defective parts.
Deleting the memorized abnormal condition
After repairing the unit, recall the failure mode again according to "Setting up the failure mode recall
function" mentioned above.
Press OPERATE/STOP (ON/OFF) button of the remote controller (the set temperature is displayed)
with the remote controller headed towards the indoor unit.
Press EMERGENCY OPERATION switch so that the memorized abnormal condition is deleted.
Release the failure mode recall function according to "Releasing the failure mode recall function"
mentioned above.
Operational procedure
Yes (Blinks)
No (OFF)
1. Regardless of normal or abnormal condition,
a short beep is emitted once the signal is
received.
2. Blinking pattern when the indoor unit is abnormal:
3.Blinking pattern when the outdoor unit is abnormal:
ON
OFF
Beeps
Repeated cycle Repeated cycle
ON
OFF
No beep Beeps
Repeated cycle
2.5-second OFF
Blinking at 0.5-
second interval
2.5-second OFF 3-second ON
Blinking at 0.5-
second interval
Beeps
Repeated cycle
2.5-second OFF
Blinking at 0.5-
second interval
No beep Beeps
Repeated cycle
2.5-second OFF 3-second ON
Blinking at 0.5-
second interval
Repeated cycle
Beeps
MSZ-FD
MSZ-GE20/25/35/42/50
MSZ-GE60/71
MSZ-HC