System Relay: Labor Times
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| Main Heater & A/C | ||||
| Cut-Off Relay | 0.4 | 0.2 | B | |
| Relay | 0.4 | 0.2 | B | |
| Auxiliary Heater & A/C | 0.4 | 0.2 | B |
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| Main Heater & A/C | ||||
| Cut-Off Relay | 0.4 | 0.2 | B | |
| Relay | 0.4 | 0.2 | B | |
| Auxiliary Heater & A/C | 0.4 | 0.2 | B |