Equator 375 service manual Troubleshooting, Disturbance, Cause, Remedy

Disturbance	Cause	Troubleshooting	Remedy
	Defective thermostat. 1.Turn thermostat knob to
		zero. 2.Compressor
		continues to run.
		3.Dismount brown wire.	4.Check internal wiring
		4.Compressor continues
			for short circuit (fast-
		to run. 5.Compressor
			freeze switch). 5.Replace
		stops.
			thermostat.
Compressor starts	Extremely high	Measure voltage.	Inform user.
normally but stops	voltage.
again.
	High ambient	Measure temperature and	Improve ventilation.
	temperature. Poor	check ventilation around
	ventilation.	compressor.
	Can be normal.	Check temperature in	Inform user.
Unit	Leakage in system	unit.
		Symptom: Evaporator not After repairing leakage,
refrigerates/freezes	with resulting loss of	wholly utilized. Localize	repair system as in the
too much, normally,	refrigerant.	leak with electronic leak	case of ice blockage in
too little or not at all.		detector-first at soldering	capillary tube. See
Compressor may run		joints, pipes and	relevant section in chart.
continuously.		compressor in motor
		compartment. Next in the
		evaporator and condenser.
		When leak is localized,
		cover area with a layer of
		Leak-Tec or liquid soap.
		Bubbles will appear at the
		exact site of leakage.

Check pressure side with compressor running and suction side when pressure ise equalized. If refrigerant pressure is insufficient for leak detection, install a service valve on charging pipe and refrigerant and N2 (approximately 10kg/cm2). Repeat leak detection.

No-Frost	Fan is not operating. Electric connections.	Blade is fixed or
	Check and see if blade is	replaced.
	fixed properly on shaft.

5.