GOODMAN DIAGNOSTIC REFERENCE MODULATING FURNACE (GMVM97) — DUAL 7-SEGMENT DISPLAY DOC GOODMAN-GMVM97-E3

Goodman furnace: Open High-Limit Switch (E3)

Q: What does E3 mean on a Goodman GMVM97 furnace?

Open High-Limit Switch (E3). The primary high limit opened — insufficient conditioned air is moving over the heat exchanger. Note this differs from GMVC96-generation boards, where E3 covers three limit types.

E3 YOUR LIGHT: DISPLAY CODE E3 — MATCH IT ABOVE

Try DIY first, then call a pro

What does E3 mean on a Goodman GMVM97 furnace? The primary high limit opened — insufficient conditioned air is moving over the heat exchanger. Note this differs from GMVC96-generation boards, where E3 covers three limit types.

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

Try these first — in this order

Fresh filter, open all vents.

1Check: Dirty filter / closed or restrictive ducts

Still showing the code? See every cause ↓ Get repair quotes near you

Recurring overheat = airflow and heat-exchanger inspection. DIY part cost: $5–25 — a pro visit for this class of fault typically runs $150–350.

What causes it (in order of likelihood)

Dirty filter / closed or restrictive ducts DIY-CHECKABLE
Blower not delivering airflow TECH

Parts referenced by this code

Air Filter (check size on the old one)

$5–25

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Always match parts against your model's parts list — part numbers vary within a series.

Applies to

GMVM97

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

Verified against GMVM97-Service, p.64/68

Last verified 2026-07-06 · how we verify