T179 — Loss of communication with the Economizer Control Board

¿Qué significa T179 ?

Communication has been lost with the Economizer Control Board (ECB), resulting in no economizer operation.

• Communication wiring problem with ECB
• Faulty MBB (Main Board)
• Faulty ECB

Haga clic en los pasos para seguir su progreso.

1. 1

   Inspect the communication wiring between the MBB and the ECB.

2. 2

   Check the MBB for proper function.

3. 3

   Test the ECB for correct operation.

4. 4

   Reset the unit after verifying connections.