How To Fix Daikin AC Error Code U4

Encountering Error Code U4 on your Daikin air conditioner? Watch this video for a detailed, step-by-step guide on diagnosing and fixing this issue.

0:00 - Introduction
0:18 - Understanding What Error Code U4 Indicates
0:28 - Step 1: Powercycle The System
0:50 - Step 2: Inspecting The Communication Wire
1:14 - Step 3: Inspecting The PCB
1:57 - Step 4: Inspect The Power Supply
2:27 - Step 4: Contacting To Daikin Support Team

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