Payne PG96VTA Error Code 25: Invalid Model Selection or Setup Error
What Does Code 25 Mean?
Status code 25 on the Payne PG96VTA indicates a model configuration mismatch. The integrated furnace control uses a physical model plug (connector PL4) and dip switches (SW1-1 and SW1-6) to identify the specific furnace model and configure operating parameters such as BTU capacity and airflow settings.
The code behaves differently depending on how it appears. If code 25 flashes only 4 times at power-up and then stops, the control has detected a discrepancy but is defaulting to the model selection stored in its memory — the furnace may continue to operate in a limited mode. If code 25 flashes continuously, the control cannot determine the correct model configuration and will not proceed.
The most common causes are a missing or incorrect model plug at connector PL4, and setup switches SW1-1 or SW1-6 positioned incorrectly. This fault typically appears after a control board replacement if the installer did not transfer or correctly set the model configuration, or if the model plug was dislodged during service.
Common Causes
When to Call a Professional
Contact a licensed HVAC technician if:
- Contact a technician to verify the model plug at PL4 and confirm setup switches SW1-1 and SW1-6 are in the correct positions for this unit
- Do not attempt to change dip switch positions without confirming the correct settings from the installation manual for this specific model
✓ Verified against manufacturer service manual — March 2026