Service Manual
Table Of Contents
- Important Safety Information
- I. Specifications
- II. General Information
- III. Technical Data
- IV. Service Diagnosis
- V. Replacement of Components
- VI. Maintenance
- VII. Disposal
37
D. Diagnostic Chart
Before consulting the diagnostic charts, check the following:
• Check the setpoint. For factory default settings, see "II.C.2.a) Default Settings."
• Make sure the doors are not left open or opened too often and that they are sealing
properly.
• Make sure product is not blocking airow or that the cabinet is not overloaded with
warm or hot product. Product should be cooled before putting it in the appliance.
• Check for correct installation and proper voltage per appliance nameplate. This
appliance is not intended for outdoor use. Normal operating ambient temperature
should be within 45°F to 100°F (7°C to 38°C). The appliance should not be located
next to ovens, grills, or other high heat producing equipment. The appliance should
be a minimum of 4" (11 cm) from side walls and a minimum of 10" (25 cm) overhead
clearance should be provided for proper ventilation.
• Check the control module using the steps in "IV.B. Control Module Check."
1. Appliance Not Cooling
Appliance Not Cooling - Possible Cause
1.
Power Supply
a)
Unplugged, off, blown fuse, or tripped or defective circuit breaker. On
three-section receptacle box, only top receptacles have power.
b)
Loose connection.
c)
Not within specications.
2.
Cord and Plug
On three-section model, check
receptacle box cord and plug and
one-section and two-section cords
and plugs.
a)
Loose connection.
b)
Defective.
3.
Power Switch (control box)
a)
"OFF" position.
b)
Bad contacts.
4.
Wiring
a)
Loose connection or open.
b)
Faulty.
5.
Control Module
See "II.D.2. Alarm Safeties" and
"IV.B. Control Module Check."
a)
In alarm or "- - -" displayed.
b)
Defective.
6.
Door Switch
a)
Defective.
7.
Door Switch Relay
a)
Loose connection.
b)
Bad contacts.
c)
Open coil windings.
8.
Evaporator Fan Motor
a)
Defective.
9.
High-Pressure Switch
a)
Dirty condenser.
b)
Ambient temperature too warm.
c)
Condenser fan not operating.
d)
Refrigerant overcharge.
e)
Refrigerant lines or components restricted.
f)
Bad contacts.
10.
Compressor Relay
a)
Bad contacts.
b)
Open coil windings.