MovinCool Classic 10 Service Manual - Manual (Page 40)

Repair Section 40
Condition
Unit does not operate.
Possible Cause
Remedy
Check Area Cause
6.Display code “HP” . Operating outside of the
operating temperature’s
range. Check environmental
condition. Do not use the
unit outside the operating
range (See page 7).
RESET the controller
*1.
Reconnect the high
pressure switch and check
the connection.
Control panel
LED display
turns on.
Control panel
display shows
error codes.
*1 : To RESET the controller, press SET TEMP ( ) buttons simultaneously for 3 seconds. /
Loose high-pressure switch
connection.
Replace high pressure
switch. Defective high-pressure
switch (short/open).
Charge the correct
amount of refrigerant (See
page 70). RESET the
controller
*1 .
Refrigerant is over charged.
*2
*2 : For unit serial number from November 2011 (1111) to Present.
Unit stops
immediately
after starting Control panel
LED displays
normal.
1.Fan Motor on/off relay (52ID)
on the relay board. Open circuit or insufficient
contact. Replace relay board.
2. Fan Motor insulation
resistance. Insulation failure on fan
motor. Replace fan motor.
3.Compressor insulation
resistance. Insulation failure on
compressor. Replace compressor.
Unit stops
after running
for a while. Control panel
LED displays
normal.
1. Coil resistance of fan motor. Defective fan motor. Replace fan motor.
2.Temperature of fan motor
abnormally high.
Operation of safety device
(IOLF) due to fan motor
malfunction. Replace fan motor.
3.Temperature of compressor
abnormally high. Operation of safety device
(IOLC) due to compressor
malfunction. Replace compressor.
Insufficient refrigerant or gas
leakage. Repair and charge
refrigerant.
4. Dirt on air filter or condenser. Insufficient cooling of
condenser. Clean air filter and
condenser.