Goodman Gas Furnace: GMNT
Re: Lockout Codes
| # of Flashes | Description |
| 1 | Ignition failure (3 tries) |
| 2 | Pressure switch stuck closed |
| 3 | Pressure switch stuck open |
| 4 | Limit switch open or Blown low voltage fuse |
| 5 | Flame present with gas valve off |
| 6 | Brown-out voltage |
| 7 | Twinning fault |
| Rapid Flash | Wrong polarity |