Trane Furnace: Run test mode (furnace)
Run test mode (furnace) on a Trane furnace: Lets the technician watch the inducer, igniter and blower step through stages without firing the burner or running the outdoor unit. Option holds a step (HLd). The test takes a short while to begin.
Applies to: S8V2, S8B1, S8X1, S8X2
How to fix run test mode (furnace): step by step
- Press Menu until run appears, then press Option; the display flashes three times and the test starts
- Steps: inducer 1st then 2nd stage (30 s each), igniter 10 s, then blower at 1st/2nd-stage compressor speed and 1st/2nd-stage gas heat speed (10 s each); the sequence repeats two more times
- Exit by pressing Menu briefly, cycling furnace power, or making a valid thermostat call
If the unit shows an error code, look it up: Trane Furnace codes
Models
Trane S8B1
S8B1A026M2PSABS8B1A040M3PSABS8B1B040M2PSABS8B1B060M3PSABS8B1B060M4PSABS8B1B080M4PSABS8B1C080M5PSABS8B1C100M5PSABS8B1D120M5PSAB
Trane S8V2
S8V2A040M3PCBS8V2A040M3PDS8V2B060M4PCBS8V2B060M4PDS8V2B080M4PCBS8V2B080M4PDS8V2C080M5PCBS8V2C080M5PDS8V2C100M5PCBS8V2C100M5PDS8V2D120M5PCBS8V2D120M5PD
Trane S8X1
S8X1A026M2PSABS8X1A040M3PSABS8X1B040M2PSABS8X1B060M3PSABS8X1B060M4PSABS8X1B080M4PSABS8X1C080M5PSABS8X1C100M5PSABS8X1D120M5PSAB
Trane S8X2
S8X2A040M3PSABS8X2B060M3PSABS8X2B060M4PSABS8X2B080M4PSABS8X2C080M5PSABS8X2C100M5PSABS8X2D120M5PSAB
Source: Trane S8V2 installation FNR-SVX003A-EN, Run Test Mode, p.57-58; Trane S8B1/S8X1/S8X2 installation 18-CE14D1-1A-EN, Display Codes, p.58. Written in our own words as a summary; always check the original manual.
General guidance for qualified technicians. The manufacturer's installation and service manual and local codes always take priority. Aurora Star Tech is not affiliated with, endorsed by or sponsored by any equipment manufacturer; brand and model names are used only to identify equipment and belong to their owners.