“Dh” Wired Controller Circuit Board Error; “Dc” Capacity Dip Switch Setting Error - Gree FGR25Pd/DNa-X Service Manual

3.1.6 "dH" wired controller circuit board error
Error display: IDU wired controller and IDU receive light board will display
Error judgment condition and method:
Wired controller IIC communication is abnormal
Possible reason：
■Communication of wired controller touch button board and display board IIC is abnormal;
■Read and write of wired controller memory chip IIC is abnormal (when memory chip is existed);
Troubleshooting:
3.1.7 "dC" Capacity DIP switch setting error
Error display: IDU wired controller and IDU receive light board will display
Error judgment condition and method:
If capacity DIP switch is set to the wrong position, report the error.
Possible reason：
■Capacity DIP switch is set to the wrong position
■Detecting circuit is abnormal
Troubleshooting:
Duct type split Air conditioner Inverter Series
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