Operating instructions

7
(Basement [Single Compressor] H/P Sec.
Continued)
9. Insufficient cooling or heating with reduced air
output.
10. Excessive cooling or heating.
11. Unit operates in wrong mode (cool instead of heat
pump or reversed)
12. Noisy operation.
BASEMENT (DUAL COMPRESSOR)
AIR CONDITIONER 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.
Air Flow Obstruction 10C 38
Air Distribution System 11C 38
Blower Wheel 12C/E 44
Remote Sensor 4G/5 129
AC Power Module Board 4G/6 130
Comfort Control Center 4G 127
Operation 1G 100
Ambient Sensor 4G/4 129
Reversing Valve 9F 95
Comfort Control Center 4G 127
Loose Parts 12C/C 44
Fan Blades Hitting 12C/E 44
Tubing Vibration 12C/D 44
Configuration 2G 106
Operation 1G 100
AC Voltage 1B 26
DC Voltage 3G 127
Breaker 3B 26
Fuse 4G/7 133
Cable Assembly 4G/2 128
Comfort Control Center 4G 127
AC Power Module Board 4G/6 130
Operation 1G 100
Cable Assembly 4G/2 128
Compressor 5C 36
AC Power Module Board 4G/6 130
Comfort Control Center 4G 127
AC Voltage 1B 26
PTCR 4C 36
Start or Run Capacitor 2C/3C 35/36
Overload Protector 6C 37
Compressor 5C 36
DUO-THERM COMFORT CONTROL CENTER SYSTEMS . . . Continued
SYMPTOM CAUSE REFER TO PAGE