6. TROUBLE SHOOTING PROCEDURE
1) NO COOLING
Check point Cause Repairs
Lamp off COMP off Power receptacle Power tailure
Power plug Connection is not good Connect correctly
Cooling cycle
Insufficient
Replace freezing mixture
COMP on Refrigerant(leak) cycle and/or cabinet
COMP. Clogged by water Replace dryer
Clogged by oil Replace dryer, COMP,
EVA, cabinet, etc.
depend on the measure
Lamp on of being clogged.
COMP
Short circuit on coil
Replace COMP
COMP off
Fan motor on PTC relay Short circuit on Replace PTC or OL
PTC or OL relay
relay
COMP off
Dfrosting timer
Faulty timer motor or
Replace defrosting timer
Fan motor off
gear
F-thermo Disconneted Replace F-thermo
Temperature fuse Short circuit on Replace temperature fuse
temperature fuse
■
Confirmation procedure on refrigerant insufficient
Repairs
Remove louver and louver insulator from the
Complete leaking
freezer. NO frst will be produced at the inlet
of evaporator after passing
. Check for leakage after
approximately 4minute operation of the COMP
vacuumming.
1) Frost condition
. Inject proper amount of
Refrigerant insufficient
: Frost condition of the inlet pipe is extremely refigerant.
(LEAK or Charge
different from the outlet pipe
unsatisfactory)
2) Measurement of the temperature
: When the inside temperature is stable,
a 5
℃
temperature difference occurs
between the inlet pipe and outlet pipe
Symptoms
Symptoms Decision
13
