Zf6: Electronic Expansion Valve Connection Error - Midea VRF Series Service Manual

V6R VRF 50/60Hz

2.11 zF6: Electronic expansion valve connection error

Digital display output
Description
 1F6 indicates Electronic expansion valve A connection error.
 2F6 indicates Electronic expansion valve C connection error.
 All units stop running.
 Error code is displayed on the unit with the error.
Trigger / recover condition
 Trigger condition: The main control board cannot receive the feedback signal of EEV.
 Recover condition: The main control board can receive the feedback signal of EEV.
 Reset method: When the main control board can receive the feedback signal of EEV, F6 flashes, a manual system restart
is required before the system can resume operation.
Possible causes
 Electronic expansion valve coil not connected properly or has malfunction.
 Outdoor main PCB damaged.
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