HVACopediaGoodman · Air handler
FAn Constant fan
What the display is showing
Shown while the blower runs for constant fan. Normal operation. The constant fan speed is set in the FSd menu (default 30 percent of maximum airflow).
Applies to: AVPTC / MBVC ComfortBridge air handlers
Models that show this code
21 models in Goodman/Amana ComfortBridge AVPTC/MBVC
Other codes on the same units
- L6F Fault recall (furnace-type menu)
- AC Compressor cooling, single stage (non-comm)
- Axx Airflow readout (A08 = 800 CFM)
- Cr Control firmware revision
- FCL Fault recall (outdoor communicating units)
- Flashing option Menu option flashing = not yet selected
- HP Compressor heat, single stage
- Ht Electric heat, single stage
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Source: Goodman ComfortNet ASXC-DSXC-GSXC / ASZC-DSZC-GSZC / AVPTC-MBVC service, Air Handler Display (B*) system status table p.63. Summarized in our own words; check the original manual for your model.
For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.