Bryant Furnace Code 27
Hard lockoutShown as: 2 short flashes, 7 long flashes; minor codes 27.1, 27.2 and 27.3
The program in the super plug is missing, not recognized, or corrupted.
Manual wording: “27.1 27.2 27.3 Program in super plug is missing, not recognized, or corrupted. Remove super plug then retry.”
Documented for: 926TC, 912SE
Likely causes, most common first
- Super plug missing, unreadable, or corrupted
When to call a technician
The technician needs to remove the super plug and retry, then try a different super plug; if the code persists the control is replaced.
A Bryant furnace throwing this code repeatedly has a reason — clearing the code without fixing the cause just hides it.
Sources
- Installation, Start-up, Operating and Service and Maintenance Instructions - 926TC (Bryant Heating & Cooling Systems, 926TC Preferred Series two-stage, variable-speed ECM multipoise condensing gas furnace) · checked 2026-08-25
- Installation, Start-up, Operating and Service and Maintenance Instructions - 912SE (Bryant Heating & Cooling Systems, 912SE Legacy Line 92% single-stage condensing gas furnace) · checked 2026-08-25