2.11 zF6: Electronic expansion valve connection error
Digital display output
Description
ï‚§ 1F6 indicates Electronic expansion valve A connection error.
ï‚§ 2F6 indicates Electronic expansion valve C connection error.
ï‚§ All units stop running.
ï‚§ Error code is displayed on the unit with the error.
Trigger / recover condition
ï‚§ Trigger condition: The main control board cannot receive the feedback signal of EEV.
ï‚§ Recover condition: The main control board can receive the feedback signal of EEV.
ï‚§ 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
ï‚§ Electronic expansion valve coil not connected properly or has malfunction.
ï‚§ Outdoor main PCB damaged.