Takagi HVAC Error Codes
Model Families
| Family | Name | Fuel | Models |
|---|---|---|---|
| T-D2U | — | — | 1 |
| T-H2S | — | — | 1 |
| T-H3 | — | — | 1 |
| T-H3J | — | — | 1 |
| T-H3M | — | — | 1 |
| T-H3S | — | — | 1 |
| T-K4 | — | — | 1 |
| T-M32 | — | — | 1 |
| T-M50 | — | — | 1 |
| TK-110U | — | — | 1 |
| TK-310U | — | — | 1 |
| TK-510U | — | — | 1 |
Error Codes
| Code | Description | Severity |
|---|---|---|
| 101 | Combustion Abnormality | Critical |
| 111 | Ignition Failure | Critical |
| 121 | Flame Failure | Critical |
| 200 | Overheating | Warning |
| 207 | Bypass Valve Error | Warning |
| 291 | Flow Rate Issue | Warning |
| 312 | Outlet Temp Sensor | Warning |
| 321 | Inlet Temp Sensor | Warning |
| 391 | Exhaust Temp Sensor | Warning |
| 510 | Gas Solenoid Valve | Critical |
| 610 | Fan Motor Fault | Warning |
| 710 | PCB Fault | Warning |
| 720 | Remote Control Error | Warning |
| 760 | Communication Error | Warning |