Error 211 - Single indoor unit uses 2 non-series MCU ports

Was bedeutet 211 ?

A single indoor unit has been incorrectly connected to two MCU (Microcontroller Unit) ports that are not meant to be used in series.

• Incorrect wiring configuration during installation
• Misunderstanding of MCU port assignments

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Power off the entire HVAC system immediately.

2. 2

   Review the wiring of the indoor unit to the MCU according to the installation manual.

3. 3

   Ensure the indoor unit is connected to only one appropriate MCU port as specified in the instructions.