67
Indoor blower motor fault family (shared diagnostic path with 68)
This code typically points to
- Motor does not start
- No 120V to motor
- Wiring issue
- ECM motor problem
- IFC output issue
Next checks to confirm
- Check status display for 67 or 68
- Verify 120V to motor at 5-pin plug
- Inspect wiring
- Test motor with ECM2+ motor tester
- If checks pass, replace IFC
Escalation
Blower fault affects heating sequence
Reset behavior
Clears when motor/control issue corrected.
Urgent
Fix now