Daikin FHK35FJV1 [127/244] 9 9 9 9

Daikin FHYC71KVE [127/244] 9 9 9 9
Troubleshooting by Remote Controller Display / LED Display Si-71A
116 Troubleshooting
6.18 Malfunction of Heat Exchanger Temperature Sensor System
Remote Controller
Display
-9
-9-9
-9
Outdoor Unit LED
Display
A(H1P)
ñ
1(H2P)
ò
2(H3P)
ò
Applicable Models
R(Y)
Malfunction
Decision
Conditions
Case where the heat exchanger temperature sensor has a short or open circuit
Supposed Causes
Failure of heat exchanger sensor
Failure of heat exchanger sensor’s connector connection
Failure of outdoor unit PC board
Troubleshooting
Note:
Measure the resistance while referring to the thermistor temperature and resistance conversion table.
Thermistor temperature and resistance conversion table.
Disconnect the heat
exchanger
temperature
sensor(R2T) from
X5A on the outdoor
unit PC board and
measure the
resistance.
Is
the thermistor
normal?
(See note)
NO
YES
Heat exchanger temperature
sensor replacement
If contact is OK, replace
outdoor unit PC board.
(SF020)
Temperature Suction, heat exchanger (indoor)
outdoor air, outdoor unit suction pipe
sensor (k
)
Temperature Suction, heat exchanger (indoor)
outdoor air, outdoor unit suction pipe
sensor (k
)
-6.0 90.8 30.0 16.2
-4.0 81.7 32.0 14.8
-2.0 73.5 34.0 13.6
0.0 66.3 36.0 12.5
2.0 59.8 38.0 11.5
4.0 54.1 40.0 10.6
6.0 48.9 42.0 9.8
8.0 44.3 44.0 9.1
10.0 40.2 46.0 8.4
12.0 36.5 48.0 7.8
14.0 33.2 50.0 7.2
16.0 30.2 52.0 6.9
18.0 27.5 54.0 6.2
20.0 25.1 56.0 5.7
22.0 23.0 58.0 5.3
24.0 21.0
26.0 19.2
28.0 17.6

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