60
SYMPTON
POSSIBLE CAUSE
Fan motor noisy.
1. Condenser fan blade or evaporator blower
wheel.
2. Loose power clamp or set screw.
3. Worn bearings.
4. Grommets (if applicable).
Compressor will not run, but fan motor runs.
1. Voltage.
2. Wiring.
3. Selector switch.
4. Temperature control.
5. Capacitor. (Discharge capacitor before testing.)
6. Compressor.
7. Motor protector (external).
8. Motor protector (internal).
9. Electronic control (if applicable).
10. Hard starting.
Compressor cycles on motor protector.
1. Voltage.
2. Motor protector (external).
3. Motor protector (internal).
4. Fan motor.
5. Condenser air flow restriction.
6. Condenser fins damanged.
7. Capacitor.
8. Wiring.
9. Refrigerant system.
Insufficient cooling.
1. Low capacity.
2. Air filter.
3. Exhaust door open.
4. Unit undersized.
Excessive noise.
1. Evaporator blower wheel.
2. Condenser wheel.
3. Copper tubing.
4. Compressor internal noise.
5. Fan motor.
Excessive water or condensation.
1. Unit operating under extremely high humidity
conditions.
No cooling.
1. Refrigerant leak.
Unit is cooling but room is not cool.
1. Amps and watts.
2. Sealed refrigeration system.
Wattage decreases slowly until abnormally low.
1. Undercharged, restricted strainer or plugged
restrictor tube.
Wattage decreases immediately.
1. No refrigerant.
2. Compressor defective.
Wattage continuously high.
1. Refrigerant overcharge.
Summary of Contents for FAA055P7A-1
Page 32: ...32 63611621 63611326 ...
Page 33: ...33 63611618 63611620 ...
Page 34: ...34 63611619 M1 M2 63611613 ...
Page 35: ...35 63611329 63611614 ...
Page 36: ...36 633611615 63611622 ...
Page 37: ...37 63611616 63611091 ...
Page 38: ...38 63611642 ...
Page 39: ...39 63611328 ...
Page 40: ...40 63611094 63611629 ...
Page 41: ...Control Thermostat Location diagram for Heavy Duty 41 ...
Page 42: ...Control Thermostat Location diagram for Median 42 ...
Page 43: ...Control Thermostat Location diagram for Slider Casement 43 ...
Page 44: ...Control Thermostat Location diagram for TTW 44 ...
Page 45: ...The 5th pipe The 4th pipe 160cm Control Thermostat Location diagram for COM2 45 ...
Page 46: ...The 5th pipe The 4th pipe 130cm Control Thermostat Location diagram for OPP5 46 ...
Page 47: ...The 5th pipe The 4th pipe 160cm Control Thermostat Location diagram for MS2 47 ...
Page 48: ...Condenser Fan and Evaporator Blower Location Diagram for TTW 1 48 ...
Page 49: ...Condenser Fan and Evaporator Blower Location Diagram for Slider Casement 1 49 ...
Page 50: ...Condenser Fan and Evaporator Blower Location Diagram for Heavy Duty 1 50 ...
Page 51: ...Condenser Fan and Evaporator Blower Location Diagram for Median 1 51 ...
Page 52: ...Condenser Fan and Evaporator Blower Location Diagram for TTW 2 52 ...
Page 53: ...Condenser Fan and Evaporator Blower Location Diagram for Slider Casement 2 53 ...
Page 54: ...Condenser Fan and Evaporator Blower Location Diagram for Median 2 54 ...
Page 55: ...Condenser Fan and Evaporator Blower Location Diagram for Heavy Duty 2 55 ...
Page 56: ...Condenser Fan and Evaporator Blower Location Diagram for OPP5 56 ...
Page 57: ...Condenser Fan and Evaporator Blower Location Diagram for MS2 57 ...
Page 58: ...Condenser Fan and Evaporator Blower Location Diagram for COM2 58 6cm 8cm ...