Daikin Service Checker Software Downloads
Download the latest Daikin Service Checker software and required virtual COM port drivers below.
Service Checker Type 4
Version: 1.4.11
Release Date: 01-21-2026
Service Checker Type 3
Version: 1.69
Release Date: 02-28-2022
Virtual COM Port Drivers
A virtual COM port driver may be required for Service Checker operation. Please select the appropriate driver:
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CP210X Virtual COM Port for Windows 10 or Windows 11
Download CP210X Universal Windows Driver -
CP210X Virtual COM Port for previous versions of Windows 8, 7, Vista, and XP
Download CP210X VCP Windows Driver
More information can be found about these drivers here:
Silicon Labs USB to UART Bridge VCP Drivers