Amana furnace code E9: High-Stage Pressure Switch Stuck Open
Professional repair
What does E9 mean on an Amana furnace? High-stage switch won't close. Official checklist: blocked or pinched switch hose, blocked flue and/or intake pipe, blocked drain, weak induced-draft blower, or a failing switch.
Before you touch anything: the six signs that mean stop troubleshooting and call a pro →
GOOD NEWS: THE FIRST CHECKS ARE FREE AND TAKE MINUTES.
Try these first — in this order
Hose + vent + trap check, 15 minutes.
Inducer performance testing. DIY part cost: $25–60 — a pro visit for this class of fault typically runs $150–350.
What causes it (in order of likelihood)
- Blocked/pinched hose, flue, or drain DIY-CHECKABLE
- Weak inducer or failing switch TECH
Parts referenced by this code
Always match parts against your model's parts list — part numbers vary within a series.
Questions about this code
What does E9 mean on an Amana furnace?
High-stage switch won't close. Official checklist: blocked or pinched switch hose, blocked flue and/or intake pipe, blocked drain, weak induced-draft blower, or a failing switch.
How do I fix Amana furnace code E9?
From ground level, check the outdoor vent ends and clear loose snow or leaves by hand if safe. A pinched hose, blocked drain, weak inducer, or failing switch needs a technician.
How much does it cost to fix Amana furnace code E9?
Cost depends on the cause. An accessible vent blockage may only need loose snow or leaves cleared away; inducer or switch problems need parts and labor that vary by situation.
Applies to
AMVC96 · ACVC96
Different Amana generations use different code maps. If your series isn't listed, don't assume this meaning — check your blower-door label.
Same control platform, same code: Goodman furnace code E9
Verified against Goodman GMVC96/GCVC96 Service Manual, p.44
Amana AMVC96/ACVC96 furnaces use the same control board and code map as the Goodman GMVC96/GCVC96 — the cited Goodman service manual is the platform document for both brands.
Last verified 2026-07-06 · page updated 2026-10-03 · how we verify
Related Amana furnace codes
These codes use the same dual 7-segment display (two-stage variable-speed) system.
| Pattern | Meaning |
|---|---|
| E8display E8 | High-Stage Pressure Switch Stuck Closed (E8) |
| EAdisplay EA | Reversed Line Polarity (EA) |
| d0display d0 | No Shared Data (d0) |
| E7display E7 | Igniter Fault or No Ground (E7) |