Mitsubishi Electric QUHZ-W40VA, Руководство по обслуживанию

Страница: 17 / 34

GHH15010
17
1
times
3
times
5
times
6
times
7
times
8
times
10
times
11
times
12
times
Abnormal point and
detection method
Case Check Code
Check LED
LED2
RED
LED1
GREEN
Judgment and action
- -
- -
- -
- -
- -
Discharge temperature high
temperature protection operation
in progress
Ambient air protection operation in
progress
Primary current protection in
operation
(compressor speed reduced)
Primary current protection in
operation
(compressor speed does not
increase)
Secondary stall control in progress
Propeller fan drive obstruction
a) Strong winds outside -
(automatic recovery performed)
Fan protection stopped
(Compressor does not stop)
(1) Transient power supply
waveform distortion, noise
(2) Persistent power supply
waveform distortion, noise
(3) Defective outdoor inverter p.c.
board
(1) - (automatic recovery
performed)
(2) Check power supply waveform
(3) Replace outdoor inverter p.c.
board
PAM control stop in progress
(1) Transient power supply
waveform distortion, noise
(2) Persistent power supply
waveform distortion, noise
(3) Defective outdoor inverter p.c.
board
(1) - (automatic recovery
performed)
(2) Check to see if the power
waveform is normal
(3) Replace outdoor inverter p.c.
board
Primary voltage detection error
protection
(1) Compressor relay connector
disconnected
(2) Defective outdoor inverter p.c.
board
(1) Turn the earth leakage circuit
breaker of the Cylinder Unit to
"OFF" before connecting the
compressor relay connector of
the outdoor unit.
(2) Replace the outdoor inverter
p.c. board
Service mode*
*The service mode is entered
when the outdoor unit is run with
the compressor relay connector
disconnected.
Outdoor unit emergency stop
Lit
Lit
Lit
Lit
Lit
Lit
Lit
Lit
Lit
E6
or
None