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Troubleshooting code

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Trane 5TWV8X24A1 Alert 187.00 troubleshooting

Evacuation mode active. Use this page to document the issue and prepare for service. GreenFlow should handle diagnosis for electrical, refrigerant, lockout, or recurring conditions.

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What the code means

Alert 187.00: Evacuation mode active

The Trane variable-speed alert table identifies EVACUATION when evacuation mode has been executed.

System area
Service mode
Service level
Service recommended

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.

Alert 187.00 questions

What does Alert 187.00 mean on a Trane 5TWV8X24A1?

The Trane variable-speed alert table identifies EVACUATION when evacuation mode has been executed.

What Trane message is associated with Alert 187.00?

The Trane source used for this page associates Alert 187.00 with "Evacuation mode active". Match the visible display text, LED pattern, or alert wording to the exact code whenever possible.

What system area does Alert 187.00 point to?

This code is grouped under service mode in the source-backed Trane troubleshooting data.

Which Trane documentation supports this Alert 187.00 page?

Source-backed Trane 5T-V8X-SF-1C-EN Service Facts variable-speed alert-code table for 5TWV8X/5TTV8X outdoor units.

What information should be captured for Alert 187.00 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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