Outdoor Units - Daikin FTKS20D3VMW Service Manual

SiENBE12-713
5.2

Outdoor Units

4
Green : Flashes when in normal condition
Red : OFF in normal condition
- : Not used for troubleshooting
∗ : Varies depending on the cases.
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 4
5 4 3 4
5 4 4 3
5 4 4 3
5 4 4 3
5 3 3 3
5 3 3 4
Note: 1. The indications in the parenthesis ( ) in the remote control display column are displayed only
2. When a sensor error occurs, check the remote control display to determine which sensor is
3. The indoor unit error indication may take the precedence in the remote control display.
Service Diagnosis
: ON, 1 : OFF, 5 : Blinks
Indication on
the remote
control
4
3 00 Outdoor unit in normal condition
(Conduct a diagnosis of the indoor unit.)
Unspecified voltage (between indoor and outdoor units)
UA
Anti-icing function in other rooms
UH
(U0) Insufficient gas
4
Low-voltage detection or over-voltage detection
4 U2
Signal transmission error (on outdoor unit PCB)
4 U7
Freeze-up protection control
4 A5
Outdoor unit PCB abnormality
3 E1
(E5) OL activation (compressor overload)
3
(E6) Compressor lock
3
DC fan lock
4 E7
Input over current detection
4 E8
Discharge pipe temperature control
3 F3
High pressure control in cooling
4 F6
Compressor sensor system abnormality
3 H0
CT or related abnormality
H8
Position sensor abnormality
3 H6
Outdoor air thermistor or related abnormality
H9
Discharge pipe thermistor or related abnormality
J3
Heat exchanger thermistor or related abnormality
J6
Liquid pipe thermistor or related abnormality
J8
Gas pipe thermistor or related abnormality
J9
Radiation fin thermistor or related abnormality
P4
Electrical box temperature rise
4 L3
Radiation fin temperature rise
4 L4
(Protection of driver overheating)
3 L5 Output over current detection
when system-down occurs.
malfunctioning.
If the remote control does not indicate the error type, conduct the following operation.
*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 of The Fault
Troubleshooting
Reference
Page
—
275
275
271
273
274
247
249
250
251
252
253
255
256
258
261
260
263
263
263
263
263
263
265
267
269
235