HVACopediaGoodman-Amana-Daikin · Furnace · Cooling
Cooling and fan only
What happens, in order
- R and Y close; control checks safety circuits
- Outdoor fan and compressor start
- Circulator blower starts on cool speed after the fixed on delay
- Blower and outdoor unit run while the control keeps monitoring safeties
- R and Y open outdoor fan and compressor stop
- Circulator blower stops after the fixed cool off delay
- Fan only R and G close, blower runs on heat speed until G opens
Timings and thresholds
| Item | Value |
|---|---|
| Cool blower on delay | 7 s |
| Cool blower off delay | 65 s |
Applies to: Goodman GM9S80, GC9S80; Amana AM9S80, AC9S80
Models
More Goodman-Amana-Daikin furnace sequences
- Gas heat call and shutdown · Ignition
- Gas heat call, first and second stage · Ignition
- Two-stage gas heat call with ramped blower · Heating
- Cooling and fan only · Cooling
- Low and second stage cooling with the furnace blower · Cooling
Take it to the job
Sequences of operation, error codes and tips work offline in the HVACopedia app.
Source: Goodman GM9S80 / AM9S80 / GC9S80 / AC9S80 service RS6621008r2, Normal Sequence of Operation. Written in our own words; timings can differ by model and software version, so check the manual for your exact unit.
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.