Goodman GMEC96 furnace rapid amber flashing: Low Flame Sense Current
Try DIY first, then call a pro
What does a rapidly flashing amber light mean on a Goodman GMEC96 furnace? Rapid amber flashing means the GMEC96 control is reading a low flame sense current. Goodman's troubleshooting chart lists it under a furnace that won't operate and says to check for a dirty or coated flame rod, a poor flame, improper gas pressure, or a poor flame sense wire or connection. The service manual adds that contaminated fuel or combustion air can leave a nearly invisible coating on the flame sensor that weakens the signal.
Easy to confuse with: Goodman GMEC96 furnace rapid red flashing (Twinning Error)
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
Turn off power to the furnace, then clean the flame rod with steel wool, as Goodman's chart advises. Try one restart.
If the light returns after cleaning, a technician should check the flame, the gas pressure, and the flame sense wiring and connections. DIY part cost: $8–15 — a pro visit for this class of fault typically runs $150–350.
What causes it (in order of likelihood)
- Dirty or coated flame rod (flame sensor) DIY-CHECKABLE
- Poor flame or improper gas pressure TECH
- Poor flame sense wire or connections 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 a rapidly flashing amber light mean on a Goodman GMEC96 furnace?
Rapid amber flashing means the GMEC96 control is reading a low flame sense current. Goodman's troubleshooting chart lists it under a furnace that won't operate and says to check for a dirty or coated flame rod, a poor flame, improper gas pressure, or a poor flame sense wire or connection. The service manual adds that contaminated fuel or combustion air can leave a nearly invisible coating on the flame sensor that weakens the signal.
How do I fix Goodman GMEC96 furnace rapid amber flashing?
With the power off, clean the flame rod with steel wool and try one restart. If rapid amber flashing comes back, a technician should check the flame, the gas pressure and the sensor wiring.
How much does it cost to fix Goodman GMEC96 furnace rapid amber flashing?
Cost depends on whether cleaning the flame rod clears the code, or whether the flame, the gas pressure or the sensor wiring needs work.
Applies to
GMEC96
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 Goodman GMEC96 Service Manual, p.52 — “Furnace does not operate, rapid Amber flashes on control board / Low flame sense current”
Verified against Goodman GMEC96 Service Manual, p.52 — “Clean flame rod with steel wool.”
Verified against Goodman GMEC96 Service Manual, p.70 — “RAPID = LOW FLAME SENSE CURRENT”
Verified against Goodman Diagnostic Code Identification System (GMEC96; Rapid Amber) — “Low Flame Sense Current”
Last verified 2026-10-20 · page updated 2026-10-20 · how we verify
Other Goodman furnace codes
These links include other Goodman model families. Code meanings can change by model and control board, so confirm your model and service manual before using a definition.