Hussmann GSVM Instructions Manual page 15

Compressor runs
continuously. Product too
warm
Compressor runs
continuously. Product too
cold
PROBLEM
Lights won't start
Lights flicker
4. Refrigerant overcharge
5. Low voltage, compressor
cycling on overload
1. Short of refrigerant
2. Inefficient compressor
1. Defective control
2. Control sensing element
not in positive contact
3. Short on refrigerant
TROUBLE SHOOTING LIGHT CHART
1. Check light switch
2. Check continuity to ballast
3. Check to see if bulbs inserted properly in sockets
4. Check voltage
1. Allow lamps to warm up
2. Check lamp sleeve for cracks
3. Check sockets for moisture and proper contact
4. Bulb replacement may be necessary
5. Check voltage
6. New bulbs tend to flicker until used
15
4. Purge system, evacuate
and recharge.
5. Check voltage at
compressor should not be
more than 5% below rating
1. Leak check, replace drier,
evacuate and recharge
2. Replace
1. Replace
2. Assure proper contact
3. Leak check, replace drier,
evacuate and recharge.
SOLUTION