3.8 F6: Electronic ball valve connection failure (for MS01)
Digital display output
Description
 Electronic ball valve (EBVA/EBVB/EBVC) connection failure.
 All units stop running.
 Error code is displayed on the unit with the error. The indoor unit display board or wired controller connected under
this MS displays "F8" fault code.
Trigger / recover condition
 Trigger condition: The main control board cannot receive the feedback signal of EBV.
 Recover condition: The main control board can receive the feedback signal of EBV.
 Reset method: Manually restart.
Possible causes
 Electronic ball valve coil doesn't connect properly or malfunction.
 MS PCB damaged.
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