Operating instructions

20
SYMPTOM CAUSE REFER TO PAGE
(MODEL 39424.601 SECTION CONTINUED)
7. Inside coil freezes
8. Insufficient cooling or heating: Compressor runs
constantly
9. Insufficient cooling or heating with reduced air
output
10. Excessive cooling or heating
11. Unit operates in wrong mode (cool instead or
heat pump or reversed)
12. Noisy Operation
Operation 5F 78
Air Flow Obstruction 10C 38
Air Distribution System 11C 38
Low Charge 14C 47
Capillary Tube Blockage 14C 47
Reversing Valve 9F 95
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
Cable Assembly 8F/B 94
Relay Board 11F 96
Thermostat 7F/E 87
Operation 5F 78
Thermostat 7F/E 87
Reversing Valve 9F 95
Loose Parts 12C/C 44
Tubing Vibration 12C/D 44
DUO-THERM BASEMENT AIR CONDITIONERS & HEAT PUMPS . . . Continued