31
11-time flash
• Check the connecting
wire between outdoor
electronic control
P.C. board and power
board.
• Replace the power
board.
• Check the connecting
wire among electronic
control P.C. board,
noise filter P.C. board
and power board.
• Check the voltage of
power supply.
• Replace the power
board.
• Check the voltage of
power supply.
• Replace the outdoor
electronic control P.C.
board.
The communication between boards
protection stop is continuously
performed twice.
Communication error occurs between
the electronic control P.C. board and
power board for more than 10
seconds.
Current sensor protection stop is
continuously performed twice.
A short or open circuit is detected in
the current sensor during compressor
operating.
The protection stop of the zero
cross detecting circuit is
continuously performed 10 times.
Zero cross signal cannot be detected
while the compressor is operating.
A failure is detected in the operation
of the converter during operation.
The bus-bar voltage exceeds 400V or
falls to 200V or below during
compressor operating.
The bus-bar voltage exceeds 400V or
falls to 50V or below during
compressor operating.
Communication error
between P.C. boards
Current sensor
Zero cross detecting circuit
Converter
Bus-bar voltage
(1)
Bus-bar voltage
(2)
Even if this protection stop is
performed continuously 3 times,
it does not mean the abnormality
in outdoor power system.
Lighting 6 times
Lighting 7 times
5 times Goes
out
5 times Goes
out
5 times
6 times
Goes
out
Goes
out
Abnormal point
(Failure mode/protection)
Condition
Remedy
Indoor/outdoor
unit failure mode
recall function
LED indication
(Outdoor P.C. board)
LED 1
LED 2
The left lamp of
OPERATION INDICATOR
lamp(Indoor unit)
NOTE
: Blinking patterns of this mode differ from the ones of Troubleshooting check table (11-4.).
Summary of Contents for MUZ-GA50VA-E1
Page 10: ...10 MUZ GA60VA E3 ...
