Daikin Skyair FHC35K - Part 6 Removal Procedure

Troubleshooting by Remote Controller Display / LED Display Si-71A
114 Troubleshooting
6.16 Malfunction of Outdoor Temperature Sensor System
Remote Controller
Display
+<
+<+<
+<
Outdoor Unit LED
Display
A(H1P)
ñ
1(H2P)
ò
2(H3P)
ò
Applicable Models
R(Y)
Malfunction
Decision
Conditions
Case where the outdoor temperature sensor has a short or open circuit
Supposed Causes
„
Failure of outdoor temperature sensor
„
Failure of outdoor temperature sensor’s connector connection
„
Failure of outdoor unit PC board
Troublshooting
Note:
Measure the resistance while referring to the thermistor temperature and resistance conversion table.
Thermistor temperature and resistance conversion table.
Disconnect the
outdoor temperature
sensor (R1T) from
X4A on the outdoor
unit PC board and
measure the
resistance.
Is
the thermistor
normal?
(See note)
NO
YES
Outdoor temperature sensor replacement
If contact is OK, replace outdoor unit PC
board.
(SF018)
Temperature Suction, heat exchanger(indoor)
outdoor air, outdoor unit suction pipe
sensor (k
Ω
)
Temperature Suction, heat exchanger(indoor)
outdoor air, outdoor unit suction pipe
sensor (k
Ω
)
-6.0 90.8 28.0 17.6
-4.0 81.7 30.0 16.2
-2.0 73.5 32.0 14.8
0.0 66.3 34.0 13.6
2.0 59.8 36.0 12.5
4.0 54.1 38.0 11.5
6.0 48.9 40.0 10.6
8.0 44.3 42.0 9.8
10.0 40.2 44.0 9.1
12.0 36.5 46.0 8.4
14.0 33.2 48.0 7.8
16.0 30.2 50.0 7.2
18.0 27.5 52.0 6.9
20.0 25.1 54.0 6.2
22.0 23.0 56.0 5.7
24.0 21.0 58.0 5.3
26.0 19.2