DELUXE
Inverter
Service
M
anual
7-2 Common Parameters
1
.
Display error code of indoor unit: fix speed air conditioners only involve E1, E2, E3 and E4
No.
Error
Code
Error Name
Probable Trouble Location
1
E1
Internal room temperature
sensor error
Internal room temperature sensor, main internal control
panel
2
E2
External coil sensor error
External coil sensor error, main external control panel
3
E3
Internal coil sensor error
Internal coil sensor error, main internal control panel
4
E4
Indoor fan error
Mechanical jam of internal fan blade, internal fan, main
internal control panel
5
E5(5E)
Indoor and outdoor unit
communication error
Bridge cable, main internal control panel, main
external control panel, module panel
6
F0
Outdoor DC fan error
Mechanical jam of external fan, external DC fan, main
external control panel
7
F1
Module protection error
Power voltage, compressor cable, reactor, module
panel, main external control panel, compressor
8
F2
PFC protection error
Power voltage, reactor, module panel, main external
control panel
9
F3
Compressor out-of-step error
System pressure, compressor cable, module panel,
main external control panel, compressor
10
F4
Exhaust air sensor error
Exhaust air sensor, main external control panel
11
F5
Compressor cap sensor error
System pressure, compressor cap sensor (protection
switch), main external control panel
12
F6
External room temperature
sensor error
External room temperature sensor, main external
control panel
13
F7
OVP or UVP error
Power voltage, reactor, module panel, main external
control panel
14
F8
Main external control panel
and module panel
communication error
Connection wire of module and main control data,
module panel, main external control panel
15
F9
Outdoor EE error
Main external control panel
16
FA
Recirculated sensor error
Recirculated sensor, four-way valve, main external
control panel
43