Operating instructions

16
SYMPTOM CAUSE REFER TO PAGE
(MODEL 391XX.XXX SECTION CONTINUED)
7. Evaporator freezes
8. Insufficient cooling, compressor runs constantly
9. Insufficient cooling with reduced air output
10. Excessive cooling
11. Noisy operation
MODELS 393XX.XXX SECTION
1. Unit does not run; No fan, no compressor
2. Fan operates: compressor will not come on
(does not "hum")
3. Fan operates: compressor tries to start, cycles
"OFF" and "hums" again, or blows circuit
breaker
Operation 2F 74
Air Flow Obstruction 10C 38
Air Distribution System 11C 38
Low Charge 14C 47
Capillary Tube Blockage 14C 47
Evaporator Blockage 14C 47
Air Flow Obstruction 10C 38
Air Distribution System 11C 38
Heat Gain/Heat Loss 12C/B 44
Refrigerant System 13C 45
Compressor 5C 36
Air Flow Obstruction 10C 38
Air Distribution System 11C 38
Thermostat 7F/C 83
Wiring 14B 31
Relay 14F/D 98
Loose Parts 12C/C 44
Tubing Vibration 12C/D 44
Operation 3F 74
AC Voltage 1B 26
Breaker 3B 26
Cable Assembly 8F/C 95
Thermostat 7F/E 87
Relay Board 11F 96
Operation 3F 74
Cable Assembly 8F/C 95
Compressor 5C 36
Thermostat 7F/E 87
Changeover Thermostat 13F 96
Relay Board 11F 96
AC Voltage 1B 26
PTCR 4C 36
Start Capacitor 3C 36
Run Capacitor 2C 35
Overload Protector 6C 37
Compressor 5C 36
DUO-THERM BASEMENT AIR CONDITIONERS & HEAT PUMPS . . . Continued