Goodman Error Code E11 indicates Open roll‑out switch. Start by checking the most common and safe items identified in the troubleshooting section. If the code returns after those checks, professional diagnosis is recommended.
Easy
Open roll‑out switch
Furnace fails to operate; LED displays E11
Open roll‑out switch caused by incorrect gas pressure, misaligned burners or burner restriction
Check for correct gas pressure; check burner alignment; correct any burner restriction
Roll‑out switch, burners, gas supply
Call an HVAC technician if the error persists after completing the recommended basic troubleshooting steps or if the system repeatedly locks out.
Disconnect power before inspecting the equipment. Never bypass safety devices or operate the system if you suspect unsafe conditions.
Learn more about the furnace components and operating conditions commonly associated with diagnostic error codes: