MovinCool Office Pro 63 Service Manual - Manual (Page 35)

Repair Section
35
Defect (short or open)
of freeze protection
thermistor
When freeze protection thermistor
(connecting to J102) becomes short
or open.
(Signal output (J106) turns on.)
Disconnect and reconnect the
freeze protection thermistor.
If it doesn’t work, then change it.
Show running hours Press ON/OFF and V buttons
simultaneously for 3 sec, total
operation hours of compressor is
indicated by 6-digit (hours).
Example in left: 807 h
After 5 sec., display goes back to
normal mode.
Show LCD and LED
all on mode
Press HI/LO and U buttons
simultaneously for 3 sec.
(To check LCD segments and LED
display.)
After 5 sec., display goes back to
normal mode.
Key lock mode (LCD
displays “LOCKED”.)
Press ENTER and SET CLOCK
buttons simultaneously for 5 sec.
Press ENTER and SET CLOCK
buttons simultaneously for 5 sec
again to cancel the key lock mode.
Indication of model
name
Press ENTER and SET CLOCK
buttons simultaneously for 5 sec or
turn on.
Reset to normal display
automatically after 5 sec.
Detection of unit stop
signal from fire alarm
system
Press input signal from fire alarm
becomes on.
(Unit stops, output signal (J106)
turns on and buzzer sounds.)
1) After input signal turns off.
2) Reset the system.
To RESET: Press ON/OFF and
HI/LO buttons on the control box
simultaneously for 5 sec.
LCD Display Description Condition Reset/Remedy
F
SET TEMP
HI
ON
COOL
FAN
F
SET TEMP
HI
ON
COOL
FAN
START
STOP
CLOCK
MO TU WE TH FR
AM
F
C F
C
PROGRAM
LOCKED
ON
PM
SA SU
SET TEMP
ROOM TEMP
HI
LO
ON
OFF
COOL
FAN
TU
AM
F
LOCKED
SET TEMP
HI
ON
COOL
FAN