HVAC Code Lookup

Daikin Mini-Split Code UC

Warning

Address duplication of central remote controller. Two indoor units on the network were assigned the same centralized address.

Manual wording: “UC Address duplication of central remote controller”

Documented for: Systems using centralized control

Likely causes, most common first

  1. Address duplication of centralized remote controller
  2. Defective indoor unit PCB

When to call a technician

Addressing is set in the field by the installer. A technician has to change one unit's centralized address.

A Daikin mini-split throwing this code repeatedly has a reason — clearing the code without fixing the cause just hides it.

Source

Other Daikin codes