Daikin FHYB45FV1 [119/244] 3 3 3 3

Daikin FHK71FJV1 [119/244] 3 3 3 3
Troubleshooting by Remote Controller Display / LED Display Si-71A
108 Troubleshooting
6.10 Actuation of Safety Device
Remote Controller
Display
(3
(3(3
(3
Outdoor Unit LED
Display
A(H1P)
ñ
1(H2P)
ò
2(H3P)
ó
Applicable Models
R(Y)
Method of
Malfunction
Detection
Actuation of each safety device is detected by safety device input circuit.
(Safety device unified detection)
Supposed Causes
<Causes related to PC board>
Failure of outdoor unit PC board
Failure of safety device input connection
Safety device’s harness is broken or disconnected
<Causes related to product as a whole>
Stop valve is set to “close”
Refrigerant piping circuit clogging
Troubleshooting
Find safety device
which is not
energized.
Is
the safety
device's lead
wire correctly
connected to the
outdoor unit PC
board?
YES
NO
Temperature of
compressor
discharge pipe is
abnormally high.
Is the fan turning correctly?
Has draft passage been
provided?
Temperature of fan
motor coil is
abnormally high.
Q1L
Q2L
Is power being properly
supplied?
(Voltage, lack of phase, etc.)
Is the compressor
malfunctioning?
Compressor current
is excessive.
F1C
*1
*2
*3
*4
Is the stop valve fully open?
Is the refrigerant piping
circuit clogged?
Is refrigerant charged to
the proper level?
Is the compressor
malfunctioning?
· · · ·
Connect correctly.
Open the stop vale.
Replace clogged part.
Charged to specified level.
Compressor replacement
Remove obstacles so the fan turns correctly, or
replace the fan.
Provide draft passage
Fan motor
replacement
Provide suitable power supply.
Compressor replacement
(SF012)

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