Outdoor Unit - Daikin SUPER MULTI NX CTXS07JVJU Service Manual

Code Indication on Remote Controller
4.2

Outdoor Unit

4
Green : Blinks in normal condition
Red : OFF in normal condition
Outdoor Unit LED Indication
Green Red
A 1 2 3
5 3 3 3
5 3 3 4
5 4 3 3
5 3 4 4
5 4 3 4
5 4 4 4
5 4 3 4
5 3 4 4
5 4 4 4
5 3 4 3
5 4 3 3
5 4 3 4
5 4 3 4
5 4 4 3
5 4 4 3
5 3 3 3
5 3 3 4
Note: 1. The error codes in the parenthesis ( ) are displayed only when the system is shut down.
2. When a sensor error occurs, check the remote controller display to determine which sensor is
3. The indoor unit error code may take the precedence in the remote controller display.
145
: ON, 3 : OFF, 5 : Blinks
Error Codes
4
3 00
Normal condition
UA
Unspecified voltage (between indoor unit and outdoor unit)
UH
Anti-icing function in other rooms
(U0)
4 Refrigerant shortage
4 U2
Low-voltage detection or over-voltage detection
4 U7
Signal transmission error (on outdoor unit PCB) (24/32 class only)
4 A5
Anti-icing function
3 E1
Outdoor unit PCB abnormality (24/32 class only)
(E5)
OL activation (compressor overload)
3
(E6)
3 Compressor lock
4 E7
DC fan lock
4 E8
Input overcurrent detection
3 EA
Four-way valve abnormality (18 class only)
3 F3
Discharge pipe temperature control
4 F6
High pressure control in cooling
3 H0
Compressor sensor system abnormality (24/32 class only)
H6
Position sensor abnormality
H8
CT or related abnormality
H9
Outdoor temperature thermistor or related abnormality
J3
Discharge pipe thermistor or related abnormality
J6
Outdoor heat exchanger thermistor or related abnormality
J8
Liquid pipe thermistor or related abnormality
J9
Gas pipe thermistor or related abnormality
P4
Radiation fin thermistor or related abnormality
4 L3
Electrical box temperature rise
4 L4
Radiation fin temperature rise
3 L5
Output overcurrent detection
malfunctioning.
If the remote controller does not indicate the error code, conduct the following procedure.
 Turn the power switch off and back on again. If the same LED indication appears again
immediately after the power is turned on, the fault is in the thermistor.
 If the above condition does not result, the fault is in the CT.
Description
SiUS12-928_B
Reference
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Service Diagnosis