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Model
Connection
C-R
C-S
Capacitor
Note: Resistance at 20°C of Ambient Temperature.
5. Air Conditioner Performance Evaluation
Intake & Discharge Air
Temperature Difference
-
8°C and over (14.4°F)
-
8°C and over (14.4°F)
-
Under 8°C (14.4°F)
-
Under 8°C (14.4°F)
-
Under 8°C (14.4°F)
Note: Room air humidity is relatively higher, the temperature difference will be smaller.
6. Troubleshooting Guide
Warning: Disconnect unit from electrical power supply before making any electrical checks.
Trouble
Fan Motor and
Compressor won't
run.
Fan motor won't
run (Compressor
run).
CW-C120VR
2KS206D5DA04
2.293
3.245
DS371356CPNA
(35
F, 370VAC)
Current Drain
-
As specified.
-
Higher than specified.
-
Higher than specified.
-
Lower than specified.
-
Higher than specified by 50%.
Check
-
Supply Voltage
-
Fuse Box or Circuit
Breaker.
-
Power cord or Wiring
Harness.
-
Temperature Setting.
-
Objects around Fan.
-
RESISTANCE between
Wires.
-
Capacitor Fan Motor.
-
Main Control Switch.
Determination
-
Nothing wrong.
-
Nothing wrong, outdoor
temperature is too high, heat
radiation is not efficient.
-
Something is preventing heat
radiation.
-
Leakage of refrigerant or
refrigerant system is blocked.
-
Compressor defect.
Result
-
Less than 10% by
Rated.
-
Open Contacts. /
-
Pulled loose or Shorted. /
-
Higher than room
temperature
-
Locked Fan.
-
Shorted / Open circuit.
-
OHM Meter doesn't
Deflect.
-
No contacts at
Position Shown.
-
None.
-
Improve heat radiation.
-
Excessive amount of refrigerant.
-
Improve heat radiation.
-
Locate and repair leak.
-
Flush refrigeration cycle.
-
Replace the compressor.
Cause
-
Temporary or
Permanent?
-
Customer Restarted
unit immediately without
waiting 3 minutes.
-
Fan Hitting Cowling.
-
Foreign Materials.
-
Frozen Bearings.
-
Shorted or Burned out.
-
Capacitor Defect.
-
Main Control Switch
defect.
Remedy
Remedy
-
Consult ELECTRICIAN,
if permanent.
-
WAIT FOR 3
MINUTES.
-
Repair Open
-
Repair or Replace
-
Set it LOWER.
-
Adjust Fan position
setting screw.
-
Remove Foreign
Materials.
-
Replace Fan
-
Replace Fan
-
Replace Capacitor
-
Replace Main
Switch.
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