MovinCool Classic 10 Service Manual User Manual
Page 38
Repair Section
38
Insufficient
air volume
No air.
1. Coil resistance of fan motor.
(0 ohm or
ohm)
Short or open circuit.
Replace fan motor.
2. Fan motor on-off relay (52ID)
on the relay board.
Open circuit or bad contact .
Replace relay board.
Insufficient
air volume.
.
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2. Evaporator.
Clogged evaporator or
crushed fins.
Repair and clean fins, or
replace evaporator.
3. Duct connection state.
Improper connection.
Repair duct connection.
4. Fan motor.
Insufficient rotation.
Replace motor.
Condition
Insufficient Cooling
Possible Cause
Remedy
Check Area
Cause
Air volume
normal
Compressor
operates.
1. Usage conditions
(high temperature).
Operation near usage limits.
Review the installation
place.
2. Dirt in condenser or
evaporator.
Insufficient heat exchange.
Clean fins.
3. Frost in refrigeration cycle.
Clogging at the frost section. Replace clogged section.
4. No temperature difference
between evaporator and
condenser.
Insufficient refrigerant.
Check the leaking part,
then repair and charge
refrigerant.
Compressor
does not
operate.
1. Compressor coil resistance.
(0 ohm or
ohm
Short or open circuit.
Replace compressor.
(In case of short, check
the compressor relay on
the relay board)
2. Compressor on/off relay
(52CM) on the relay board.
Open circuit or insufficient
contact.
Replace relay board.
3. Capacitor for compressor
and fan motor.
Capacitor malfunction.
Replace capacitor.
4. Compressor overload relay.
Overload relay fault.
Replace overload relay.
er supply.
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6. High Pressure Switch
*
1
.
Defective high pressure
switch ( short or open ).
Replace high pressure
switch.
Loose high pressure switch
connection.
Reconnect high pressure
switch and check
connection.
*1 : For unit serial number from November 2011 (1111) to Present.