MovinCool Office Pro 63 Service Manual - Manual (Page 36)

Repair Section
36
Indication of service
code
Press ON/OFF and U buttons
simultaneously for 3 sec. Indication
contents is as follows.
1) See page 36 and 37.
2) Press ON /OFF button.
Change model setting For installing new controller PCB, if
a different model name appears
when the unit is reset or turned on,
change model name according to
the correct procedure.
1) While pressing U and V
buttons, plug the power cord.
<Condition>
LCD indicates current setting
model name and buzzer sounds.
2) After setting the model type by
pressing U and V button,
unplug the unit.
Activation of high
pressure switch
When high pressure switch
(connected to J104) activates
(=J104 input turns to open) 3 times
in 24 h, “HP” is indicated and signal
output (J106) turns on.
When it activates 10 times in 24 h,
“FAIL HP” is indicated and buzzer
sounds.
Find the cause of high pressure to
address it.
Check the following.
Ambient air temperature
(65 °F (18.3 °C), 50 % RH ⇔
95 °F (35 °C), 60 %RH)
Air filter (if dirty, wash up.)
Condenser fan motor (if not
working, replace.) Defect of high
pressure switch (if switch is open
when unit is off, replace switch.)
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
LCD
DF
FZ
OD
Description Value
Defrost status
Evap. out pipe
temperature 26
⇔
109F
(“26”
⇔
“X9”)
Outdoor
temperature
0 (“00”)
TU
AM
F
SET TEMP
HI
ON
COOL
FAN