10-4 Trouble chesk for the cooling cycle
－14－
SR-21/24 NME(WME)
Moisture in the refrigerant
causes the malfunction.
Foreign substances
hamper the cooling cycle.
The comperssor is
defective
Too much refrigerant
Refrigerant leaks.
(Slight refrigerant leakage
causes partial cooling
with frost on the EVAP)
Replace the refrigerant
Locate the disturbed section
and make repairs
Replace the compressor
Replace the refrigerant
After welding the leaked
spot, replace the refrigerant
Symptom
Cause Suggestions
● The EVAP cools down and warms again
● The condenser warms in proportin as the
EVAP cools,
● The process continues to repeat.
● The condenser is cold
● The EVAP is not cold
● The temperature of the comrressor is
high
● No difference in temperatures
detween suction pipe and discharge
pipe
● The temperature of the compressor
is maintained at room temperature.
● The EVAPdoes not cool down.
● Frost on the suction pipe
● The condenser is overheated.
● The refrigeration in the EVAP is not
effecient.
● The condenser is cold.
● The compressor surface temperature
is hogh.
● The refrigerator is not easily get
cooled.
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