What the code means
Condensate overflow: Condensate overflow input active
The Trane Axiom variable-speed WSHP manual identifies BI2 as the condensate overflow input, which can generate a condensate-related diagnostic when active.
Troubleshooting code
Back to all VSVE0331 error codes
Trane VSVE0331 Condensate overflow troubleshooting
Condensate overflow input active. Use this page to document the issue and prepare for service. GreenFlow should handle diagnosis for electrical, refrigerant, lockout, or recurring conditions.
Safe checks before calling
- Confirm the thermostat is on, set correctly, and calling for heating or cooling.
- Check the air filter and visible return-air path for obvious airflow restrictions.
- Look around the outdoor unit for leaves, snow, ice, or other visible obstructions without opening the cabinet.
- Take photos of the thermostat, outdoor unit, nameplate, and any visible flash pattern before scheduling service.
When to stop and call GreenFlow
Call GreenFlow if the code repeats, the system is locked out, heating or cooling is not restored, there is ice buildup, electrical odor, unusual noise, or any issue involving pressure switches, sensors, wiring, refrigerant, reversing-valve operation, or warranty coverage.
Share the visible code, model and serial number if available, photos, current symptoms, and whether the issue affects heating, cooling, or both.
Condensate overflow questions
What does Condensate overflow mean on a Trane VSVE0331?
The Trane Axiom variable-speed WSHP manual identifies BI2 as the condensate overflow input, which can generate a condensate-related diagnostic when active.
What Trane message is associated with Condensate overflow?
The Trane source used for this page associates Condensate overflow with "Condensate overflow input active". Match the visible display text, LED pattern, or alert wording to the exact code whenever possible.
What system area does Condensate overflow point to?
This code is grouped under condensate safety in the source-backed Trane troubleshooting data.
Which Trane documentation supports this Condensate overflow page?
Source-backed Trane WSHP-SVX13G-EN troubleshooting table for Axiom variable-speed water-source heat pumps. Rows are diagnostic conditions, not homeowner repair instructions.
What information should be captured for Condensate overflow before clearing alerts?
Capture the exact code, any displayed alert text, the model and serial number, thermostat or control status, operating mode, symptoms, and photos of the display or LED pattern before the alert history is cleared.
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