Troubleshooting code
Back to all 5TEMCD05AV41 error codes
Past sensor communication or sensor error. Use this page to document the issue and prepare for service. GreenFlow should handle diagnosis for electrical, refrigerant, lockout, or recurring conditions.
What the code means
Trane AHR-SVX004C-EN MCB diagnostic-code table for 5TEMC variable-speed air handlers identifies 7 Flash on software V9.1 and later as part of the past sensor communication/sensor-error group.
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.
Trane AHR-SVX004C-EN MCB diagnostic-code table for 5TEMC variable-speed air handlers identifies 7 Flash on software V9.1 and later as part of the past sensor communication/sensor-error group.
Check thermostat status, filter condition, visible outdoor-unit obstructions, and take photos of the flash pattern and nameplate. Do not open electrical panels or refrigerant-side components.
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.
GreenFlow can review the code, photos, equipment access, and symptoms before scheduling the right next step.
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