Gree HLR35SM/NaA-M Service Manual page 40

MODULAR MINI CHILLER
5. Phase Inversion (missing) Protection(Power Off)
Phase
inversion(missing)
protection
Yes
Phase sequence of
Yes
power supply is
wrong
No
Yes
Phase missing
No
Inverse protector Yes
is broken
No
Yes
Misdeclaring alarm
of controller
No
Contact with supplier
Adjust connection
wires
Check power supply
Replace inverse
protector
Check if it happens
frequently. If necessary,
replace mainboard
MAINTENANCE
40