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Trane L8V1A060U3VSA troubleshooting and error codes

Use this table to identify what the visible code may mean and what information to share when scheduling service. Keep checks simple and visible; do not open electrical, refrigerant, gas, or sealed equipment compartments.

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Error-code table

Search codes for L8V1A060U3VSA

Code Meaning System area Safe first step Action
E01 Internal control failure Integrated furnace control Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. View details
E2.1 Retries exceeded; flame never sensed Ignition and flame sensing Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. View details
E2.2 Recycles exceeded; flame was lost Ignition and flame sensing Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. View details
E2.3 First-stage gas valve not energized when expected Gas valve control Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. View details
E2.4 HLO relay not energized when expected Redundant relay / HLO output Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. View details
E3.1 Pressure transducer signal not present Pressure transducer Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. View details
E3.2 Pressure transducer signal out of bounds Pressure transducer Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. View details
E3.3 Insufficient pressure Pressure transducer Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. View details
E04 Open limit switch Thermal limit and safety circuit Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. View details
E05 Flame sense error Flame sensing Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. View details
E6.1 Reversed polarity Power and grounding Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. View details
E6.2 Ground error Power and grounding Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. View details
E7.1 First-stage gas valve energized when it should be off Gas valve control Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. View details
E7.2 Redundant relay energized when it should be off Redundant relay / HLO output Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. View details
E08 Low flame sense Flame sensing Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. View details
E10 Inducer communication error Inducer communication Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. View details
E11 Internal gas valve error Gas valve control Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. View details
E12 Open low-voltage fuse Low-voltage protection Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. View details
E13 Personality module motor ID error Motor identification Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. View details
E14 Personality module missing Configuration data Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. View details
E15 Personality module memory error Configuration data Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. View details
E17 Blower communication error on motor Blower communication Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. View details
E18 Blower communication error on IFC Blower communication Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. View details

Safety note

What is safe to check before service

These pages are meant to help document the issue, not replace diagnosis. GreenFlow should handle pressure-switch, electrical, refrigerant, lockout, recurring, and warranty-related conditions.

Safe visible checks

  • Thermostat display and settings
  • Filter condition and return-air path
  • Visible outdoor-unit obstruction
  • Photos of the code, unit, and nameplate

Stop and call

  • Repeated lockouts or recurring faults
  • Pressure-switch or sensor faults
  • Electrical odor, unusual noise, or ice buildup
  • Any sealed cabinet, refrigerant, gas, or warranty issue

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John F.

I needed 2 new AC units and decided to go with high efficiency heat pumps. I chose Greenflow because of the equipment they offered, and the price (2nd lowest quote and much cheaper than the average of all quote we received). Their technicians were very detail oriented and...

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HVAC technician was punctual, followed up well, completed quick repairs, ensured the issue was resolved, and provided helpful recommendations.

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