Troubleshooting Guide

For 2015 or earlier Wall Mount Models
WB009GMFI16HLD, WB012GMFI16HLD, WB018GMFI16HLD (2015 and earlier)
De-frost Time
r
Auto O
p
eratio Failure Dis
p
la
y
   
Indoor unit EEPROM parameter error E0
★ ★ ★ ★
Communication malfunction between indoor and
outdoor units error
E1
 
★ ★
Zero-crossing signal detection error E2
 
★ ★
Indoor fan speed has been out of control E3
X

X
★
Outdoor temperature sensor(coil sensor T3 or
ambient temperature sensor T4) malfunction or
Outdoor unit EEPROM parameter error sensor
E5
  
★
Indoor room temperature sensor(room sensor T1
or coil sensor T2
)
malfunction
E6
★

★ ★
Outdoor fan speed has been out of control E7
X X

★
Inverter module (IPM) malfunction P0
X
 
★
Over-voltage or under-voltage protection P1

X X
★
Compressor top high temperature protection
(OLP)
P2

X

★
Low ambient temperature cut off in heating P3

X
★ ★
Compressor drive malfunction P4
X

★ ★
Indoor units mode conflict P5