Fault Code Lookup

HVAC Sales Master
D3 / Ed3
Mismatch between shared data and the control physical hardware
This code typically points to
  • Shared data sent to integrated control module does not match hardware configuration

Next checks to confirm
  1. Verify shared data is correct for the specific model
  2. Repopulate data if required

Escalation
Hardware/data mismatch fault
Reset behavior
Clears after correct shared data is loaded.
Urgent
Fix now
Source
Daikin Fit Outdoor Unit Installation Manual 3P515859-5S, troubleshooting table, p.37