EC56 — Outdoor T2B sensor error

What does EC56 mean?

The T2B sensor in the outdoor unit is experiencing an error. This sensor typically measures the temperature at the outlet of the outdoor coil.

• Faulty outdoor T2B sensor
• Loose or damaged wiring
• Connection issue with the control board

Click steps to track your progress.

1. 1

   Inspect the wiring and connections for the outdoor T2B sensor.

2. 2

   Check the sensor's resistance value against the manual's specifications.

3. 3

   If the sensor is found to be faulty, replace it.

4. 4

   If the sensor and wiring appear fine, the control board may be the issue.