Goodman Furnace Code 2
Soft lockoutShown as: 2 flashes, then a pause, repeating
Pressure switch stuck closed. The control saw the vent pressure switch already closed before the draft inducer started, so it will not light the burners.
Manual wording: “Pressure Switch stuck Closed”
Documented for: Goodman GMS8, GMH8, GDS8, GDH8, GHS8, GME8, GMES80, GCES80, GMSS92, GMSS96, GCSS96 (single red diagnostic LED)
Likely causes, most common first
- Induced draft blower pressure switch contacts sticking
- Shorts in the pressure switch circuit
- Induced draft blower is not operating
What you can safely check yourself
- Turn the furnace off at its power switch for about 30 seconds and back on once to see if the code clears
When to call a technician
A stuck pressure switch is a safety-proving device. It must be tested and replaced by a technician - never jumpered or bypassed.
A Goodman furnace throwing this code repeatedly has a reason — clearing the code without fixing the cause just hides it.
Sources
- Installation Instructions for *M(H,S)8 / *D(H,S)8 / *HS8 / GME8 Gas Furnace (Category I) - IO-359J (Daikin Comfort Technologies (Goodman brand), Goodman GMS8, GMH8, GDS8, GDH8, GHS8, GME8 80% AFUE gas furnaces) · checked 2026-08-25
- Installation Instructions - *MES80 / *CES80 Gas Furnace, Category I - IOG-2021H (Daikin Comfort Technologies (Goodman brand), Goodman GMES80, GCES80 80% AFUE gas furnaces (PCBBF145 control board)) · checked 2026-08-25
- Installation Instructions for *MSS9* & *CSS9* Single-Stage Gas Furnace - IOG-2009Q (Daikin Comfort Technologies (Goodman brand), Goodman GMSS92, GMSS96, GCSS96 single-stage 92/96% AFUE gas furnaces) · checked 2026-08-25