American Standard S8X1 furnace code E6.2: Bad grounding
Professional repair
What does E6.2 mean on an American Standard Silver S8X1 gas furnace display? E6.2 means the control has detected a poor ground connection. It points to the furnace's ground path, which needs electrical testing.
Before you touch anything: the six signs that mean stop troubleshooting and call a pro →
Ground continuity must be measured and the wiring inspected by a qualified technician or electrician. This involves line-voltage circuits and is not homeowner work.
Possible causes
- Loose, corroded or missing ground connection at the furnace TECH
Parts for this code
No model-verified part number is listed here. Have the fault diagnosed and the correct part matched to your furnace before ordering.
Questions about this code
What does E6.2 mean on an American Standard Silver S8X1 gas furnace display?
E6.2 means the control has detected a poor ground connection. It points to the furnace's ground path, which needs electrical testing.
How do I fix American Standard S8X1 furnace code E6.2?
Book a technician or electrician to measure the ground path and repair the connection. Afterward they should verify the code clears through a full heating cycle. Do not open electrical boxes or change wiring yourself.
How much does it cost to fix American Standard S8X1 furnace code E6.2?
Cost depends on where the ground fault is found, from a loose connection at the furnace to supply wiring work. Diagnosis comes first.
Applies to
S8X1A040M3PSCA · S8X1B040M2PSCA · S8X1B060M4PSCB · S8X1B080M4PSCB · S8X1C080M5PSCA · S8X1C100M5PSCB · S8X1D120M5PSCA
Different American Standard generations use different code maps. If your series isn't listed, don't assume this meaning — check your blower-door label.
Verified against Installation, Operation, and Maintenance — Upflow/Downflow/Horizontal Gas-Fired,1–Stage and2–Stage Induced Draft Furnaces with High Efficiency Motor, p.58
Verified against Installation, Operation, and Maintenance — Upflow/Downflow/Horizontal Gas-Fired,1–Stage and2–Stage Induced Draft Furnaces with High Efficiency Motor, p.72
Verified against Installer’s Guide — Upflow/Downflow/Horizontal Gas-Fired,1–Stage and2–Stage Induced Draft Furnaces with High Efficiency Motor, p.58
Last verified 2026-10-07 · page updated 2026-10-07 · how we verify
Related American Standard furnace codes
These codes use the same american standard silver s8x1 furnace control display (2024 iom) system.