WhisperKool SS7000, SS4000 owner manual Check refrigerant “sight glass” in 1/4” tubing

	7.	System low on	Check refrigerant “sight glass” in 1/4” tubing.
	refrigerant.		Check for bubbles after system has run for several
			minutes. If bubbles present, call a CERTIFIED HVAC
			service technician. If sight is clear of bubbles,
			refrigerant level is OK.
	8.	Thermostatic	System will operate as if it were low on refrigerant
	expansion valve power		charge. Sight glass will be clear. Evaporator coil icing
	element losing its		probable.
	charge.		Call a CERTIFIED HVAC service technician.
	9.	Low voltage to	Low voltage will cause compressor overheating and
	compressor, below		tripping on overload. Also, can have difficulty starting.
	103V with compressor		This is usually a field wiring problem which should be
	running.		corrected immediately.
	10.	Cooling system not	If system is determined to run OK but not keeping up,
	sufficient for load		run a heat gain calculation for the wine cellar and
			compare with cooling system capacity.
Evaporator blower runs, but compressor does not
	1.	System “Anti-Frost“	Observe for several minutes. Compressor should turn on
			at termination of “Anti Frost“ Cycle and evaporator clear
			of frost.
	2.	Power off to	Check breaker/Refer to #3 above
	compressor.
	3.	Out of refrigerant.	Call a CERTIFIED HVAC service technician to locate leak,
			repair and charge with refrigerant
	4.	Compressor off on	Determine if compressor is hot. If not, there is another
	overload.		problem. If yes, shut off power to condensing unit and
			call service technician
	5.	Liquid line solenoid	Remove cover. Locate valve in ¼” copper tube. Check
	valve in evaporator not		to see if it is hot. If hot and you can feel a magnetic pull
	active.		with a screwdriver, the valve is working. If cold, there is
			no power to the valve coil. In this event, with the blower
			running, the valve should be powered. Call a CERTIFIED
			HVAC service technician.
	6.	Thermostat	System will “pump down.” Compressor will stop.
	expansion valve power		May start occasionally and shut off quickly.
	element lost charge		Call a CERTIFIED HVAC service technician.

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