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Verfügbare Sprachen
Verfügbare Sprachen
Super Digital Inverter
13
TROUBLESHOOTING
You can perform fault diagnosis of the outdoor unit with the LEDs on the P.C. board of the outdoor unit
in addition to check codes displayed on the wired remote controller of the indoor unit.
Use the LEDs and check codes for various checks. Details of check codes displayed on the wired remote
controller of the indoor unit are described in the Installation Manual of the indoor unit.
Check of the current abnormal status
1. Check that DIP switch SW803 is set to all OFF.
2. Jot down the states of LED800 to LED804.
(Display mode 1)
3. Press SW800 for at least one second. The LED
status changes to display mode 2.
4. Check the code whose display mode 1 equals
the jotted LED status and display mode 2
equals the current flashing status of LED800 to
LED804 from the following table to identify the
cause.
No.
1
Normal
2
Discharge (TD) sensor error
3
Heat exchanger (TE) sensor error
4
Heat exchanger (TL) sensor error
5
Outside air temperature (TO) sensor error
6
Suction (TS) sensor error
7
Heat sink (TH) sensor error
Outdoor temperature sensor (TE/TS) connection
8
error
9
Outdoor EEPROM error
10
Compressor lock
11
Compressor lock
12
Current detect circuit error
13
Thermostat for compressor activated
Model data not set
14
(on the service P.C. board)
15
MCU-MCU communication error
16
Discharge temperature error
Abnormal power
17
(open phase detected or abnormal voltage)
18
Heat sink overheat
19
Gas leak detected
20
4-way valve reverse error
21
High pressure release operation
22
Outdoor fan motor error
23
Compressor driver short-circuit protection
24
Position detect circuit error in one-line display
Cause
D800
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– 20 –
Outdoor Unit Installation Manual
Check of the abnormal status in the past although
the abnormal status is not occurred now.
1. Set bit 1 of DIP switch SW803 to ON.
2. Jot down the states of LED800 to LED804.
(Display mode 1)
3. Press SW800 for at least one second. The LED
status changes to display mode 2.
4. Find an error whose display mode 1 equals the
jotted LED status and display mode 2 equals the
current flashing status of LED800 to LED804
from the following table to identify the error.
• An outside air temperature (TO) sensor error
can be checked only while an error occurs.
Display mode 1
D801
D802
D803
D804
D800
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Display mode 2
D801
D802
D803
D804
EN
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:ON
:Flashing)
20-EN
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