Amana AMSS9 furnace fault codes
Every diagnostic code Amana publishes for the AMSS9 series — 11 of them — taken from the manufacturer's own per-model fault code database rather than from a general table.
Codes differ between models from the same manufacturer, which is why this list is worth reading in preference to a brand-wide one. Six flashes means a rollout switch on some Goodman models and a rollout limit or a blown control module fuse on others. A count that appears on one board may not exist on another at all.
AMSS9 codes
| What the LED shows | What it means |
|---|---|
| continuous on | Normal operation — no fault stored |
| LED off | No power to the furnace, or an internal control fault |
| rapid flashing | Reversed 115 volt polarity, a grounding problem, or an open igniter circuit |
| 1 flash | Lockout after too many failed ignition attempts |
| 2 flashes | Pressure switch is closed when it should be open |
| 3 flashes | Pressure switch will not close |
| 4 flashes | High limit switch is open — the furnace is overheating |
| 5 flashes | Flame detected when no flame should be present |
| 6 flashes | Rollout limit open, or control module fuse blown |
| 7 flashes | Flame signal is too weak |
| 8 flashes | Igniter circuit fault, most often caused by poor grounding |
Other Amana models
Goodman models
- Goodman GCVC96 — 31 codes
- Goodman GCVM97 — 43 codes
- Goodman GMEC96 — 24 codes
- Goodman GMH — 11 codes
- Goodman GMP — 8 codes
- Goodman GMS — 10 codes
- Goodman GMSS9 — 11 codes
- Goodman GMV8 — 12 codes
- Goodman GMV9 — 11 codes
- Goodman GMVC96 — 32 codes
- Goodman GMVM97 — 43 codes
This site is a reference, not a substitute for a licensed HVAC technician. Gas appliances can leak carbon monoxide and cause fire. Anything involving gas lines, the heat exchanger, or the flame sensing circuit should be handled by a licensed professional. Pages are written with AI assistance from the sources listed on each page and checked against them before publishing.