| 10 | Ecobee Thermostat Error Code 10: How to Fix It | medium | Medium |
| 11 | Ecobee Thermostat Error Code 11: How to Fix It | medium | Medium |
| 12 | Ecobee Thermostat Error Code 12: How to Fix It | medium | Medium |
| 13 | Ecobee Thermostat Error Code 13: How to Fix It | medium | Easy |
| 14 | Ecobee Thermostat Error Code 14: How to Fix It | medium | Easy |
| 15 | Ecobee Thermostat Error Code 15: How to Fix It | medium | Easy |
| 16 | Ecobee Thermostat Error Code 16: How to Fix It | medium | Easy |
| 17 | Ecobee Thermostat Error Code 17: How to Fix It | medium | Easy |
| 18 | Ecobee Thermostat Error Code 18: How to Fix It | medium | Easy |
| 19 | Ecobee Thermostat Error Code 19: How to Fix It | medium | Medium |
| 2 | Ecobee Thermostat Error Code 2: How to Fix It | medium | Medium |
| 3 | Ecobee Thermostat Error Code 3: How to Fix It | medium | Easy |
| 4 | Ecobee Thermostat Error Code 4: How to Fix It | medium | Medium |
| 5 | Ecobee Thermostat Error Code 5: How to Fix It | medium | Medium |
| 6 | Ecobee Thermostat Error Code 6: How to Fix It | medium | Easy |
| 7 | Ecobee Thermostat Error Code 7: How to Fix It | medium | Easy |
| 8 | Ecobee Thermostat Error Code 8: How to Fix It | medium | Easy |
| 9 | Ecobee Thermostat Error Code 9: How to Fix It | medium | Easy |
| Auto-changeover gap too small | Ecobee Thermostat Error Code Auto-changeover gap too small: How to Fix It | low | Easy |
| Aux Heat Runtime Alert | Ecobee Thermostat Aux Heat Runtime Alert: How to Fix It | medium | Easy |
| Aux heat running | Ecobee Thermostat Aux Heat Running: How to Fix It | low | Easy |
| C wire missing | Ecobee Thermostat Error Code C Wire Missing: How to Fix It | high | Medium |
| Calibrating cool | Ecobee Thermostat Error Code Calibrating Cool: How to Fix It | low | Easy |
| Calibrating heat | Ecobee Thermostat Error Code Calibrating Heat: How to Fix It | low | Easy |
| Calibration Error | Ecobee Thermostat Calibration Error: How to Fix It | medium | Easy |
| Compressor lockout | Ecobee Thermostat Compressor Lockout: How to Fix It | medium | Easy |
| Cool Failed | Ecobee Thermostat Error Code Cool Failed: How to Fix It | high | Medium |
| Error 1 | Ecobee Thermostat Error Code 1: How to Fix It | low | Easy |
| Fan only runtime exceeded | Ecobee Thermostat Error Code Fan Runtime Exceeded: How to Fix It | low | Easy |
| Heat Failed | Ecobee Thermostat Heat Failed Error: How to Fix It | high | Medium |
| HomeKit pairing failed | Ecobee Thermostat Error Code HomeKit Pairing Failed: How to Fix It | low | Easy |
| Low Battery (Sensor) | Ecobee Thermostat Error Code Low Battery (Sensor): How to Fix It | low | Easy |
| No Internet | Ecobee Thermostat Error Code No Internet: How to Fix It | medium | Easy |
| No Power | Ecobee Thermostat No Power Error: How to Fix It | high | Medium |
| Reversing valve fault | Ecobee Thermostat Reversing Valve Fault: How to Fix It | high | Easy |
| Sensor Disconnected | Ecobee Thermostat Error Code Sensor Disconnected: How to Fix It | low | Easy |
| Sensor lost | Ecobee Thermostat Error Code Sensor Lost: How to Fix It | low | Easy |
| Smart Recovery active | Ecobee Thermostat Smart Recovery Active: How to Fix It | low | Easy |
| Temperature Sensor Failure | Ecobee Thermostat Temperature Sensor Failure: How to Fix It | high | Easy |
| Vacation hold active | Ecobee Thermostat Error Code Vacation Hold Active: How to Fix It | low | Easy |
| Weather data unavailable | Ecobee Thermostat Error Code Weather Data Unavailable: How to Fix It | low | Easy |
| Wi-Fi disconnected | Ecobee Thermostat Wi-Fi Disconnected: How to Fix It | medium | Easy |
| Wiring conflict | Ecobee Thermostat Wiring Conflict Error: How to Fix It | high | Medium |