Table of Contents
Advertisement
E. Diagnostic Tables
Check for correct appliance installation per the instruction manual and proper voltage per
appliance nameplate.
1. Not Cooling
Not Cooling - Possible Cause
1. Power Supply
2. Cord and Plug On three-
section model, check
receptacle box cord and
plug and one-section and
two-section cords and
plugs
3. Power Switch (control
box)
4. Wiring
5. Controller, See "III.D.
Alarm Safeties" and "II.C.
Controller Check"
6. Evaporator Fan Motor
7. Compressor Relay
8. Compressor Protector
9.
Compressor
10. Condenser
11. Evaporator See "II.E.2.
Evaporator Frozen Up"
12. Refrigerant/Refrigerant
Lines
a) Unplugged, off, blown fuse, tripped or defective circuit
breaker. On three-section receptacle box, only top
receptacles have power.
b) Loose connection.
c) Not within specifications.
a) Loose connection.
b) Defective.
a) "OFF" position.
b) Defective.
a) Loose connection.
b) Faulty.
a) In alarm or "- - -" shown on display.
b) Defective.
a) Defective.
a) Defective.
a) Dirty condenser.
b) Condenser fan motor not operating.
c) Compressor capacitor or start relay defective.
d) Defective.
a) Defective.
a) Dirty.
a) Clogged or frozen.
a) Refrigerant leak.
b) Refrigerant lines restricted.
15
Advertisement
Table of Contents
