Pioneer YN018GMFI16M2D Service Manual page 33

For CB Series Ceiling Cassette, RB Series Ceiling Concealed (Ducted) and UB Series Floor-
Ceiling (Flex Mount) Indoor Units:
Operatio
Timer De-frost
n
X
★
X X
X ★
X X
★ ★
X
★

★

★

★
★ 
X
★
★ ★
★ ◎
X
★
Alarm
X X Open or short circuit of T1 temperature sensor
X Open or short circuit of T2 temperature sensor
★
Communication malfunction between indoor and
X X
outdoor units
X ★ Full-water malfunction
X X Indoor EEPROM malfunction
X IPM module protection

Open or short circuit of T3 or T4 temperature sensor
X X
or outdoor EEPROM malfunction
X Outdoor fan has been out of control
★
 X Indoor fan speed has been out of control
X  Voltage protection
X Temperature protection of compressor top.

X Outdoor unit over-current protection
★
X X Inverter compressor drive protection
  Mode conflict
★ flash at 2.5/sec  light ON, X extinguished, , ◎flash at 0.5/sec.
Note: Digital display is only available for duct type.
Failure
ODU Error
Display
code
E0 ——
E1 ——
E2 E2
E3 ——
E4 ——
E5 P6
E6
E0,E4
E7 E8
F5 ——
P0 E5
P1 P0
P2 P3
P4 ——
P5 ——