| 10 Most Common Problems | | Diagnosis &
Repair Cost
(U.S. dollars w/o tax) |
| 1. Outdoor unit does not come on | |
|
| | a. No AC power to unit | | |
| | - Defective breaker | | $95 - 144 |
| | - Wire burned at disconnect | | $68 - 90 |
| | - Transfer to electrician | | $43 - 58 |
| | b. Defective contactor | | $114 - 271 |
| | c. Defective thermostat | | $122 - 162 |
| | d. Defective transformer | | $99 - 132 |
| | e. Dog chewed through low voltage wires | | $68 - 90 |
| | f. Wire burned off at contactor | | $68 - 90 |
2. Circuit breaker trips when unit turned on | | |
| | a. Weak breaker | | $95 - 144 |
| | b. Grounded compressor | | $700 - 1100 |
| | c. Condenser fan motor shorted to ground | | $248 - 337 |
| | d. Defective contactor | | $114 - 271 |
3. Unit hums but fan does not run | | |
| | a. Defective fan motor | | $248 - 337 |
| | b. Burned wire | | $68 - 90 |
| | c. Defective capacitor | | $123 - 164 |
4. Unit fan runs but compressor does not | | |
| | a. Burned wire at compressor | | $68 - 90 |
| | b. Compressor out on overload protector | | |
| | - Adjust refrigerant charge | | $48 + 24 per lb. |
| | - Clean condenser coil | | $94 - 125 |
| | - Defective run capacitor | | $123 - 164 |
| | - Replace compressor if won't reset | | $700 - 1100 |
| | c. Defective compressor | | $700 - 1100 |
| | d. Defective start capacitor | | $132 - 176 |
| | e. Add hard start relay | | $157 - 209 |
5. Outdoor unit runs, no fan inside | | |
| | a. Defective blower motor | | $275 - 385 |
| | b. Defective capacitor | | $88 - 118 |
| | c. Evaporator coil dirty | | $103 - 140 |
| | d. Dirty filter | | $43 - 58 |
| | e. Wire burned off | | $68 - 90 |
| | f. Defective fan center | | $179 - 239 |
6. AC leaking water inside house | | |
| | a. Drain stopped up | | $77 - 102 |
| | b. Evaporator coil pan rusted out | | $800 - 1200 |
| | c. Unit frozen up | | |
7. Ice on lines at u/s unit and at condenser | | |
| | a. Evaporator extremely dirty | | $103 - 140 |
| | b. Dirty filter | | $43 - 58 |
| | c. Low on refrigerant | | $48 + 24 per lb. |
| | d. Defective blower motor | | $275 - 385 |
| | e. Defective blower motor capacitor | | $88 - 118 |
8. Thermostat not holding temperature that is set for | | |
| | a. Thermostat not calibrated | | $43 - 58 |
| | b. Defective thermostat | | $122 - 162 |
9. Several rooms in home warmer than others | | |
| | a. No dampers installed in duct system | | Time & Materials |
| | b. Air not balanced in system | | |
| | - balance system w/dampers | | $90 - 120 |
10. Unit runs constantly | | |
| | a. Low on refrigerant | | $48 + 24 per lb. |
| | b. Returns pulling attic air | | Time & Materials |
