Payne Furnace Code 25.1
Hard lockoutShown as: Major code 25 flashed on the LED (2 short, 5 long); 25.1 on the display
No program information in the control's microprocessor - there is no heating operation until the control is programmed.
Manual wording: “25.1 NO PROGRAM info in micro, no heating operation.”
Documented for: PG80MSU
Likely causes, most common first
- Control board unprogrammed or program lost
When to call a technician
The control has to be reprogrammed with the program number from the rating plate using the dealer service app or a super plug.
A Payne furnace throwing this code repeatedly has a reason — clearing the code without fixing the cause just hides it.
Source
- PG80MSU: Installation, Start-up, Operating and Service and Maintenance Instructions (Payne, PG80MSU 80% multipoise gas furnace with 3-digit display and pressure transducer) · checked 2026-08-25