Table of Contents
Advertisement
Table 4-
LED Display Indicators
ERROR CODE
MODE_TATUS
[NO ERROR]
E0
E1
E2
E3
E4
E7
E6
Ed
EE
FE
LED DISPLAY
Operation Light ON
Operation Light OFF
Operation Light Flashing Slow*
Timer Light ON
Timer Light OFF
Defrost / Fan Light ON
Defrost / Fan Light OFF
Defrost / Fan Light Flashing Fastt
Timer Light Flashing Fast
Operation Light Flashing Fast
Defrost / Fan Light Flashing Slow
Timer Light Flashing Slow
Alarm Light Flashing Slow
Alarm Light Flashing Fast
Operation and Timer Light Flashing Fast
*Flashing Slow = Flashing once per second,
tFlashing
Fast = Flashing twice per second.
Table 5 -- Troubleshooting
ERROR
DISPLAY
Starting
Shutdown
Standby
Timing ON
Timing OFF
System Defrost ON
System Defrost OFF
Heating / Cooling Mode Conflict Error
Communication
Error Between Indoor and Outdoor Unit
Check Indoor Ambient Temperature
Sensor (T1)
Check Evaporator Temperature
Sensor (T2)
Check Evaporator Outlet Temperature
Sensor (T2B)
EEPROM Error (Data Storage)
Fan Motor Error
Outdoor Unit Error
Water Level Error
Indoor Unit Turned ON But Does Not Have An Address
EO
E1
E2, E3,
E4
E6
E7
Ed
EE
FE
Defrost Light Flashing Fast (Heating/
Cooling Mode Conflict Error)
Timer Light Flashing Fast
(Communication
Error)
Operation Light Flashing Fast
(Sensor Error)
Timer Light Flashing Slow
POSSIBLE
CAUSES
System is in cooling or fan only mode and
heating signal is received from a unit on the
system,
System is in heating mode and cooling sig-
nal is received from a unit on the system,
Signal wires are short-circuited
or
disconnected,
Signal wire order is incorrect,
Signal wires crossing over high voltage
_ower wires.
Signal wire close to electromagnetic
source.
Signal wire length exceeds 360 ft.
PC board fault.
Loose connection at port on PC board.
Sensor is short- circuited.
PC board fault.
DC motor fault.
PC board fault.
Chip or PC board fault.
POSSIBLE
SOLUTIONS
All units should be in cooling mode for system to
stay in cooling mode,
All units should be in heating mode,
Check or reconnect signal wire,
Defrost Light Flashing Slow
(EEPROM Error)
Alarm Light Flashing Slow (Outdoor
Outdoor unit fault,
Refer to outdoor unit troubleshooting
guide,
Unit Error)
Loose connection or disconnected
at port
on PC board.
Water level float is stuck.
Trap slope is too steep.
Drain pipe is too long.
Drain pump faulty.
Alarm Light Flashing Fast (Water
Level Error)
Operation and Timer Light Flashing
Fast Together
(Address Error)
Indoor unit without address,
Correct signal wire order.
Separate and distance the signal wire from high
voltage power wires.
Distance signal wires from electromagnetic
source.
Reduce the signal wire length.
Replace PC board.
Tighten the connection at port on PC board.
Using multi-meter,
measure resistance of the sen-
sor. If the resistance is < 100 ohms, change the
sensor.
Replace PC board.
Replace DC motor.
Replace PC board.
Replace PC board.
Tighten the connection or reconnect at port on PC
board,
Inspect the float,
Adjust the trap slope,
Adjust the length of drain pipe,
Replace the drain pump,
Run automatic addressing option at the outdoor
unit,
Use remote wireless or wired controller to re-
address indoor unit,
]!
Advertisement
Table of Contents
