CABINET TROUBLESHOOTING GUIDE
48
MAINTENANCE & REPAIR
TROUBLE
COMMON CAUSE
REMEDY
UNIT RUNS ALL THE TIME.
NOISY OPERATION.
UNIT CYCLES ON OVERLOAD.
Not enough air circulation around cabinet or
air circulation is restricted.
Poor lid seal.
Refrigerant charge.
Room temperature too warm.
Cold Control.
Loose flooring or floor not firm.
Tubing contacting cabinet or other tubing.
Cabinet not level.
Fan hitting shroud.
Compressor mechanically grounded.
Broken relay.
Weak overload protector.
Low voltage.
Broken valve.
Faulty thermostat.
Leaky door gasket; lid left open.
Moisture in system.
Relocate cabinet or provide proper
clearances around cabinet.
Check and make necessary adjustments.
Undercharge or overcharge--check,
evacuate and recharge with proper charge.
Ventilate room as much as possible.
Check control; if it allows unit to operate
all the time, replace control.
Tighten flooring or brace floor.
Move tubing.
Level cabinet.
Move fan blade.
Replace compressor mounts.
Replace relay.
Replace overload protector.
Check outlet with voltmeter. Underload
voltage should be 115V plus or minus
10%. Check for several appliances on
same circuit or extremely long or
undersized extension cord being used.
Replace motor compressor.
Check thermostat—test and replace if
necessary.
Replace gasket; close lids when not serving.
Evacuate and recharge.
STUCK MOTOR COMPRESSOR
CABINET RUNS ALL THE
ITEM. TEMP TOO COLD.
RAPID ICE BUILDUP
ON EVAP.
FREEZER WORKS, THEN
WARMS UP.
Dipping Cabinet 1298.02 2/3/03 1:15 PM Page 50
Summary of Contents for R-404A
Page 3: ...Introduction...
Page 13: ...SECTION II Principles of Operation...
Page 14: ......
Page 28: ......
Page 29: ...SECTION III Maintenance Repair...
Page 55: ...PARTS LISTING With Illustration Identification...
Page 56: ...CABINET PARTS EXPLODED VIEW 54 CABINET PARTS EXPLODED VIEW 2 1 3 4 7 9 8 6 10 11 5...
Page 60: ...CONDENSING UNIT EXPLODED VIEW 58 CONDENSING UNIT EXPLODED VIEW...
Page 62: ...ELECTRICAL PARTS EXPLODED VIEW 60 ELECTRICAL PARTS EXPLODED VIEW...
Page 64: ...1 6 7 2 4 3 5 LID EXPLODED VIEW 62 LID EXPLODED VIEW...
Page 66: ......
Page 67: ...ACCESSORIES...
Page 68: ......
Page 73: ...ADJUSTABLE LEG KIT 52 1831 01 ACCESSORIES 71...
Page 74: ...CASTER KIT 52 1830 01 72 ACCESSORIES...
Page 76: ...CAN CLAMP INSTALLATION 74 ACCESSORIES...
Page 79: ......
Page 80: ...by National Refrigeration Products 563 Corbin Road Honea Path South Carolina 800 486 8369...