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Trane A801X060AM3SD 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 A801X060AM3SD

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 Retry 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; established 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
E3.1 Shorted first-stage pressure switch Pressure switch circuit Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. View details
E3.2 Open first-stage pressure switch Pressure switch circuit Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. View details
E04 Open limit circuit Thermal limit and safety circuit Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. View details
E05 Flame detected when it should not be present Flame sensing Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. View details
E6.1 Reversed voltage polarity Power and grounding Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. View details
E6.2 Bad grounding Power and grounding Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. View details
E6.3 Igniter relay or open igniter fault Ignition circuit Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. View details
E7.1 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
E08 Low flame current Flame sensing Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. View details
E11 Internal gas valve relay or 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

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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Sharad W.

Green Flow and the people who work there are terrific. Vlad and Andre are excellent. Andre was very helpful. He was punctual, respectful, efficient and knowledgeable. He did not try to sell me something I didn’t need ( as others have done before). I was charged $99 which...

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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...

Ray

Just had a service call because my tankless water heater stopped working with E110 code. Andrey located the root cause real quick and fixed the issue within half an hour, also gave reasonable recommendations for further maintenance.

Dev W.

I had a breakdown of my cooling system and Hanna at Green Flow responded to my request right away. They scheduled me same day. The team at Green Flow was easy to communicate with over phone and text. They kept me updated on delays on arrival of the...

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