F01Goodman · GM9S96 · Furnace

Goodman GM9S96 code F01

Blower speed setup value 1

Setup value, not a fault

Quick answer

On Goodman GM9S96 (2020s), F01 is an installer setup value, not a fault. F01 through F09 are the airflow selection values an installer picks from the setup menu during commissioning. They tell the control how much air the blower should move. They are configuration numbers, not errors, and a furnace displaying one of them is a furnace that has been set up. A first thing to check: Normal commissioned setting displayed during setup or startup.

Applies to: Goodman GM9S96; Goodman GM9S96 and GR9S96 alphanumeric codes · Furnace · 2020s
Type of code: Status or setup value; Urgency: nothing to fix
First safe check: Check whether the system heats and cools normally before assuming anything is wrong. If it does, there is no fault here.

Checked 2026-09-26

What F01 means on this model

F01 through F09 are the airflow selection values an installer picks from the setup menu during commissioning. They tell the control how much air the blower should move. They are configuration numbers, not errors, and a furnace displaying one of them is a furnace that has been set up.

Symptoms you will notice

A setup value shows on the display instead of a fault
Furnace heats and cools normally
Value appears after a control board or motor change

Common causes

The code tells you what the control detected, not which part failed. These are the causes we see most often, roughly in order of likelihood:

Normal commissioned setting displayed during setup or startup
Technician left the setup menu open after commissioning
Settings read out of memory after a board replacement

What you can safely check

These are homeowner-level checks. None of them need you to open a live electrical compartment or work on gas.

Check whether the system heats and cools normally before assuming anything is wrong. If it does, there is no fault here.
Write down the value before changing anything, so the original selection can be put back.

Do not do these

×Do not pick a different airflow value to see what happens. The blower, the limits and the heat exchanger were all matched to the original selection.

When to call a technician

Worth scheduling, and worth your own checks first

You can usually keep living with this for a short while, but it will not fix itself. Do the safe checks below first, because a tripped switch or a blocked airflow is a five-minute fix that would otherwise cost you a service call.

This is a fuel-burning appliance, so treat anything involving a burner, gas valve or flue as technician work. If you smell gas at any point, leave the property and call the gas utility from outside rather than continuing to diagnose.
If the appliance has stopped mid-cycle, is making a noise you have not heard before, or smells burnt, stop reading here and call. Those are symptoms of something the fault code does not describe well enough.

Reading these values is fine. Changing them should be left to the technician who commissioned the system.

What it costs to fix

Parts

None.

Labor