CARRIER DIAGNOSTIC REFERENCE STATUS LED — SHORT + LONG FLASH CODES DOC CARRIER-11

Carrier furnace: Code 11 — No Previous Fault Stored

Q: What does code 11 mean on a Carrier furnace?

Code 11 — No Previous Fault Stored. 1 short + 1 long flash on recall = nothing stored. Codes self-erase after 72 hours (and on RED-LED boards, whenever power is interrupted).

YOUR LIGHT: 1 SHORT + 1 LONG FLASHES — MATCH IT ABOVE

Info — not a fault

What does code 11 mean on a Carrier furnace? 1 short + 1 long flash on recall = nothing stored. Codes self-erase after 72 hours (and on RED-LED boards, whenever power is interrupted).

GOOD NEWS: THE FIRST CHECKS ARE FREE AND TAKE MINUTES.

Try these first — in this order

Nothing to fix — this is the all-clear.

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A licensed technician can diagnose this in one visit.

Applies to

58STA · 58STX · Bryant 310/311/312 系 · Payne PG8M 系

Different Carrier generations use different code maps. If your series isn't listed, don't assume this meaning — check your blower-door label.

Verified against Carrier 58STA/58STX Installation & Service Instructions (1106202L), p.37

Last verified 2026-07-06 · how we verify