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View Full Version : Daikin VRV-IV HR - "H3-05" error



R666A
15-12-2021, 01:15 PM
Hi everyone.

Did anybody get the "H3-05" in REYQ-T?
16038
Classic "H3" - "Malfunction of HP-switch". But for REYQ it is "Connection malfunction main PCB <> inv.2 PCB"

In my case seems to be the "LC-14" - "Transmission error between main PCB (A1P) - inv.2 PCB (A6P)"
16039

Inv.2 PCB A6P was replaced about 1 month ago.

R666A
26-12-2021, 03:30 PM
Ahahah. When I assemblied power modules conn. X6A was inserted so weakly. During defrost compressor has high rpm and vibration ))))))