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ERROR CODE
[NO ERROR]
E1
E2
E3
E4
FE
F0
*Flashing Slow = Flashing once per second.
†Flashing Fast = Flashing twice per second.
ERROR
DISPLAY
Timer Light Flashing Fast
E1
(Communication Error)
E2, E3,
Operation Light Flashing Fast
E4
(Sensor Error)
Operation and Timer Lights Flashing
FE
Fast Together
(Address Error)
F0
Wired Remote Controller Screen
Replacement Parts —
and unit serial number when ordering replacement parts or
contacting the factory about the unit. This information can be
found on the serial plate attached to the unit. See Fig. 14.
Table 3 — LED Display Indicators
LED DISPLAY
Operation Light ON
Operation Light OFF
Operation Light Flashing Slow*
Timer Light ON
Timer Light OFF
Timer Light Flashing Fast†
Operation Light Flashing Fast
Operation and Timer Lights Flashing Fast
Wired Remote Controller Only (40WA900023)
Table 4 — Troubleshooting
POSSIBLE CAUSES
Signal wires are short-circuited or
disconnected.
Signal wire order is incorrect.
Signal wires crossing over high voltage
power 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.
Indoor unit without address.
Incorrect signal wiring between indoor unit
and wired remote controller.
Quote the unit model number
Starting
Shutdown
Standby
Timing ON
Timing OFF
Communication Error Between Indoor and Outdoor Unit
Check Indoor Ambient Temperature Sensor (T1)
Check Evaporator Temperature Sensor (T2)
Check Evaporator Outlet Temperature Sensor (T2B)
Indoor Unit Turned ON but does not have an Address
Communication Error between Indoor Unit and Wired
Remote Controller
Check or reconnect signal wire.
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.
Run automatic addressing option at the outdoor
unit.
Use remote wireless or wired controller to re-
address indoor unit.
Correct signal wiring between indoor unit and
wired remote controller as per wiring diagram pro-
vided in installation manual.
WALL MOUNTED UNIT
40WAW009---3
2115V40002
208/230
1
60
Fig. 13 — Unit Serial Plate (Example)
10
MODE/STATUS
POSSIBLE SOLUTIONS
7310 West Morris Street
Indianapolis, IN 46231 USA
0.14
1/50
15
a40-1717
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