Actuation Of Safety Device - Daikin Skyair FHC35K Service Manual

Troubleshooting by Remote Controller Display / LED Display
6.10

Actuation of Safety Device

(3 (3 (3 (3
Remote Controller
Display
Outdoor Unit LED
A(H1P)
Display
Applicable Models
R(Y)
Method of
Actuation of each safety device is detected by safety device input circuit.
Malfunction (Safety device unified detection)
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
108
ñ ò
1(H2P) 2(H3P)
Is
the safety
device's lead
NO
wire correctly
connected to the
outdoor unit PC
board?
YES
Find safety device
which is not
energized.
Temperature of
compressor
discharge pipe is
abnormally high.
*1 Is the stop valve fully open?
*2 Is the refrigerant piping
circuit clogged?
*3 Is refrigerant charged to
the proper level?
*4 Is the compressor
malfunctioning?
· · · ·
Temperature of fan
Q1L
motor coil is
Q2L
abnormally high.
Is the fan turning correctly?
Has draft passage been
provided?
Compressor current
F1C
is excessive.
Is power being properly
supplied?
(Voltage, lack of phase, etc.)
Is the compressor
malfunctioning?
ó
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
Troubleshooting
Si-71A
(SF012)