Daikin | error code L1 | How to fault finding.

Brand : Daikin inverter model : RZR50LUV1 Error code : L1 L1 is a outdoor PCb failure.There may be an underlying cause forthe failure so many also be a fan motor or compressor failure that caused the problem. 1)Reset power supply and test run . 2)check outdoor fan motor or compressor 3)if outdoor fan motor ok or compressor not running, please check the compressor incoming voltage. Mj