Tadiran Telecom Swift Inverter 9U, Service Manual

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60
2. Display error code of outdoor unit's indicator lights:
Display by the 3 LED indicator lights on the control panel of the outdoor unit:
○ for off; ● for on;
★
for flashing.
No
.
LE
D1
LE
D2
LE
D3
Error Name Probable Trouble Location
1
○ ○ ○
Normal (outdoor
unit standby)
Normal, all three lights off for standby
status.
2
★ ★ ★
Normal
(compressor
running)
Normal, all three lights flash while
compressor running.
3
● ● ●
Forced service
(test mode)
Normal
4
★ ★ ●
Module
protection error
Power voltage, compressor cable, reactor,
module panel, main external control panel,
compressor.
5
★ ★ ○
PFC protection
error
Power voltage, reactor, module panel, main
external control panel.
6
★
●
★
Compressor
out-of-step error
Power voltage, compressor cable, module
panel, main external control panel,
compressor.
7
★ ○ ★
Exhaust air sensor
error
System pressure, exhaust air sensor, main
external control panel.
8
● ★ ★
External coil
sensor error
External coil sensor, main external control
panel.
9
○
★ ★
External room
temperature
sensor error
External room temperature sensor, main
external control panel.
10
★
● ●
Indoor and
outdoor unit
communication
error
Connection wire, main internal control
panel, main external control panel, EE
reverse connection, module panel.
11
★
● ○
Main external
control panel and
module panel
communication
error
Connection wire of module and main
control data, module panel, main external
control panel
12
★
○ ●
Outdoor EE error Main external control panel
13
★ ○ ○
Outdoor DC fan
error
Mechanical jam of external fan, external
DC fan, main external control panel.
14
●
★
●
Internal room
temperature
sensor error
Internal room temperature sensor, main
internal control panel.