Luxaire All Systems

Luxaire Error Code EE

Troubleshooting guide for the Luxaire system fault EE.

What It Means

Fault in condensate water-level detection circuit.

Possible Causes

  • Loose, corroded, or disconnected float switch wiring.
  • Stuck or debris-fouled float switch mechanism.
  • Blocked drain line causing erratic float behavior.
  • Defective condensate float switch or water-level sensor.

Not sure which one it is — or if it's none of these? Try ACLogics today.

Disclaimer: This information is for general reference. Error codes can vary by model and production year. Always refer to your machine's specific manual and the information printed on the unit itself.
New to this code? Click to see why this happens

Full Diagnosis

Indicates a fault in the condensate water-level detection circuit itself — the float switch or level sensor signal is reading outside its valid range — as opposed to E6, which reports an actual high-water alarm condition. EE can trip even with a dry drain pan if the sensor circuit is open, shorted, or disconnected. The unit typically halts cooling operation as a precaution since the board can no longer confirm safe condensate levels.

All Recorded Causes

Check the condensate float switch or water-level sensor wiring and connector for looseness, corrosion, or disconnection. Verify the float switch moves freely and is not stuck or fouled with debris or algae. Confirm the drain pan and line are not blocked in a way that would cause erratic float behavior. Replace the float switch or level sensor if it fails a continuity/function test independent of actual water presence.

Verify Before Replacing Parts

  1. Confirm the exact Luxaire model family and default context before acting on a generic code description.
  2. Verify the sensor or thermistor reading against the expected range for the current operating condition, keeping in mind that check the condensate float switch or water-level sensor wiring and connector for looseness….
  3. Check the sensor harness and board connection before condemning the sensor itself; on Luxaire units this is also where you'd confirm verify the float switch moves freely and is not stuck or fouled with debris or algae.
  4. After the correction, run the system long enough to confirm the default fault does not return under normal load.

Not sure which system this Luxaire code is on?

ACLogics has guided diagnostics for 60 Luxaire fault codes and asks the right questions to narrow it down.

See how ACLogics diagnoses Luxaire units →