| 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 | | $152 - 203 |
| | d. Defective transformer | | $99 - 132 |
| | e. Dog chewed through low voltage wire | | $68 - 90 |
| | f. Wire burned off contactor | | $68 - 90 |
2. Circuit breaker trips when unit comes on | | |
| | a. Weak breaker | | $95 - 144 |
| | b. Grounded compressor | | $700 - 1100 |
| | c. Condenser fan motor shorted to ground | | $248 - 337 |
| | d. Defective capacitor | | $123 - 164 |
3. Outside unit hums but fan does not run | | |
| | a. Defective fan motor | | $248 - 337 |
| | b. Burned wire at contactor | | $68 - 90 |
| | c. Defective capacitor | | $123 - 164 |
4. Outside fan runs but compressor does not | | |
| | a. Burned wire at compressor | | $68 - 90 |
| | b. Compressor out on internal overload | | |
| | - Adjust refrigerant charge | | $48 + 24 per lb. |
| | - Clean condenser coil | | $103 - 140 |
| | - Defective run capacitor | | $123 - 164 |
| | - Internal compressor failure | | $700 - 1100 |
| | d. Defective start capacitor | | $132 - 176 |
| | e. Add hard start relay | | $157 - 209 |
| | f. Defective high pressure switch | | $180 - 240 |
5. Heat pump freezes up w/ice | | |
| | a. Normal operation during cold weather | | $43 - 58 |
| | b. Low on refrigerant | | $48 + 24 per lb. |
| | c. Defective defrost timer | | $196 - 262 |
| | d. Defective blower motor | | $275 - 385 |
| | e. Dirty filter | | $68 - 90 |
| | f. Dirty evaporator coil | | $103 - 140 |
6. Cool air blowing from vents during winter | | |
| | a. Defective reversing valve | | $461 - 656 |
| | b. Low on refrigerant | | $48 + 24 per lb. |
| | c. Heat pump not running | | |
| | - See #1 | | |
7. Emergency heat does not work | | |
| | a. Heat strips burned out | | $126 - 270 |
| | b. Defective limits | | $104 - 138 |
| | c. Defective thermostat | | $152 - 203 |
| | d. No AC power to the air-handler | | $43 - 58 |
| | e. Wire burned off at the air-handler | | $68 - 90 |
8. Outdoor unit runs constantly | | |
| | a. Low on refrigerant | | $48 + 24 per lb. |
| | b. Returns pulling attic air | | Time & Material |
| | c. Defective thermostat | | $152 - 203 |
9. Indoor fan does not come on, | | |
| outdoor unit running | | |
| | a. Defective blower motor | | $275 -385 |
| | b. Defective capacitor | | $88 - 118 |
| | c. Evaporator extremely dirty | | $103 -140 |
| | d. Filter dirty | | $50 - 66 |
10. Air temperature fluctuates from room to room | | |
| | a. No dampers installed in system | | Time & Material |
| | b. Dampers not adjusted for proper air balance | | Time & Material |
