Trane Furnace Code E2.2
Hard lockout
Recycles exceeded. The burner lit but the flame was lost during the cycle, repeatedly, so the control locked out for one hour.
Manual wording: “Recycles Exceeded (Flame sensed then lost, one hour lockout after 10 times)”
Documented for: S8B1, S8V2, S9V2 and S9V2-VS furnaces with the seven-segment IFC display
Likely causes, most common first
- Flame sensed then lost, ten times
- Marginal flame signal or dirty flame sensor
- Low or unstable gas pressure
- On the S9V2-VS, the first-stage pressure switch opening ten times during a cycle
What you can safely check yourself
- Check the air filter and replace it if dirty
- Check the outdoor intake and exhaust terminations for blockage
- Reset once by turning the furnace switch off and back on
When to call a technician
Repeated flame loss is a burner, flame sensor, gas pressure, or venting problem. Have a technician diagnose it rather than resetting repeatedly.
A Trane furnace throwing this code repeatedly has a reason — clearing the code without fixing the cause just hides it.
Sources
- Installer's Guide - Upflow/Downflow/Horizontal Left/Right Gas-Fired, Single Stage Induced Draft Furnaces with High Efficiency Motor (18-CE09D1-1E-EN) (Trane, S8B1A026M2PSAB through S8B1D120M5PSAB single-stage 80% induced draft furnaces) · checked 2026-08-25
- Installer's Guide - Upflow/Horizontal and Downflow Gas-Fired, Direct/Non-Direct Vent, 2-Stage Condensing Variable Speed Furnaces (18-CE01D1-1E-EN) (Trane, S9V2B040U3PSAA through S9V2D120D5PSAA two-stage condensing variable-speed furnaces) · checked 2026-08-25
- Installation, Operation, and Maintenance - Gas-Fired 2-Stage Condensing Variable Speed Furnaces with Variable Speed Draft Inducer (FNR-SVX001B-EN) (Trane, S9V2B040U3VSBB through S9V2D120D5VSBB (S9V2-VS) two-stage condensing variable-speed furnaces) · checked 2026-08-25