Daikin LX10F11B User Manual

2-25
004 F401 ・ F405 ・ F407 ・ F409
Alarm
Logic
and
Possible
Causes
F401 SS, DSS, RS and DRS all failed during chilled mode, or X16A (CPU board) is disconnected.
F405 Multiple sensor (HPT,DCHS1,DCHS2) all failure.
F407 Multiple sensor (HPT,LPT) all failure.
F409 Multiple sensor (LPT,DCHS1,DCHS2) all failure.
Trouble
Shooting
The unit cannot perform backup operation and cannot be controlled.
Replace each failed sensor.
Refer to
016
,
017
, and
019
.
Controller
Action
F401, F405, F407, F409 Unit stop
005 F701 ・ E701
Alarm
Logic
F701
① Abnormal power voltage is detected within 2 seconds when the unit starts. (≧AC565V or ≦
AC300V)
② One of R, S or T phase is open when the unit starts (F705 is also generated when S phase is
open.)
E701
③Abnormal power voltage is detected during operation. (≧AC565V or ≦AC329V)
④ One of R, S or T phase is open during operation (F705 is also generated when S phase is
open.)
Possible
Causes
Power supply voltage is at high voltage (≧AC565V) or low voltage (≦AC329V).
One of R,S,T phase is open
Trouble
Shooting
①、③ Power check
1. Check if the actual power supply within range (AC329V〜AC565V).
②、④ Check R,S,T phase is open
2.1 Check if there is open phase on the primary side
(Power side) of circuit breaker
2.2 Check if there is broken wire (open) on the secondary
side of circuit breaker
＊Between CB〜X63A (PT/CT board)
2.1 Repair or replace if there is a
problem in power plug or cable
Provide specified power supply
if there is open phase in power
supply
2.2 Repair as needed.
Controller
Action
F701 Unit stop
E701 Restart after 3 minutes
0219-44LX10F11BEn.indd2-250219-44LX10F11BEn.indd2-25 2014/11/1916:37:582014/11/1916:37:58
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Daikin LX10F11B Specifications

General

Brand	Daikin
Model	LX10F11B
Category	Inverter
Language	English