Daikin 2MXL18QMVJU Service Manual

Code Indication on Remote Controller SiUS121632EA
134 Service Diagnosis
4.3 Outdoor Unit
i
: ON,
h
: OFF,
j
: Blinks
Notes: 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
malfunctioning.
If the remote controller does not indicate the error code, conduct the following procedure.
∗ Turn the power off and then 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.
3. The indoor unit error code may take the precedence in the remote controller display.
4. Turn the power off and then on again. If the same LED indication appears again, outdoor unit
PCB is faulty. Replace the outdoor unit PCB.
Outdoor Unit LED Indication
Error
Codes
Description
Reference
Page
Green Red
A12345
jhhhhh00
Normal condition —
UA
Unspecified voltage (between indoor unit and outdoor unit) 165
UH
Anti-icing control in other rooms 165
jhhiih (U0)
Refrigerant shortage 160
jihhihU2
Low-voltage detection or over-voltage detection 162
jhihhhU3
Wiring Error Check Unexecuted 164
jihiihA5
Anti-icing control for indoor unit 166
jiiihhE1
Outdoor unit PCB abnormality 168
jihih h (E5)
OL activation (compressor overload) 169
jhiihh (E6)
Compressor lock 171
jiiiihE7
DC fan lock 172
jhihihE8
Input overcurrent detection 173
jihhhhEA
Four way valve abnormality 174
jihih hF3
Discharge pipe temperature control 176
jihiihF6
High pressure control in cooling 177
jiihhhH0
Compressor sensor system abnormality 178
H6
Position sensor abnormality 180
H8
CT or related abnormality 182
H9
Outdoor temperature thermistor or related abnormality 184
J3
Discharge pipe thermistor or related abnormality 184
J6
Outdoor heat exchanger thermistor or related abnormality 184
J8
Liquid pipe thermistor or related abnormality 184
J9
Gas pipe thermistor or related abnormality 184
P4
Radiation fin thermistor or related abnormality 184
jiihihL3
Electrical box temperature rise 186
jhhhihL4
Radiation fin temperature rise 187
jhhihhL5
Output overcurrent detection 188
i
——————
See the note 4.
—
h
——————
Check the power supply.
—

Daikin 2MXL18QMVJU Specifications

General

Brand	Daikin
Model	2MXL18QMVJU
Category	Air Conditioner
Language	English