2U14CS1ERA-SM
Functions and control
29
Domestic Air Conditioner
the complete appliance’s malfunctions are prior to the units’ malfunctions.
Annex 1˖Malfunction codes of the whole unit
Remarks: under the mode of refrigeration, the malfunctions of each unit’s thin pipe temperature
sensor are not reported, under the mode of heating, the malfunctions of each unit’s thick pipe
temperature sensor are not reported.
F12 1 Outdoor EEPROM error
F1
2
The protection of IPM
F22
3
Overcurrent protection of AC electricity for the outdoor model
F3 4 Communication fault between the IPM and outdoor PCB
F19 6 Power voltage is too high or low
F4 8 Overheat protection for exhaust temperature
F21 10 Frost-removing temperature sensor failure
F6 12 Ambient temperature sensor failure
F25 13 Exhaust temperature sensor failure
E7 15 Communication fault between indoor and outdoor units
F11 18 deviate from the normal for the compressor
---- 19 Loop of the station detect error
E9 21 High work-intense protection
--- 24 Overcurrent of the compressor
--- 25 Overcurrent protection for single-phase of the compressor
---- 36 The socket protect
5.3 Value of Thermistor
5.3.1 intdoor Unit
Room sensor and Pipe Sensor
R25ć=10K¡f3%
B25ć/50ć=3700Kf3%
Temp.((ć))
Max.(Kȍ) Normal(Kȍ) Min.(Kȍ)
Tolerance(ć)
-30 165.2170 147.9497 132.3678 -1.94 1.75
-29 155.5754 139.5600 125.0806 -1.93 1.74
-28 146.5609 131.7022 118.2434 -1.91 1.73
-27 138.1285 124.3392 111.8256 -1.89 1.71
-26 130.2371 117.4366 105.7989 -1.87 1.70
-25 122.8484 110.9627 100.1367 -1.85 1.69
-24 115.9272 104.8882 94.8149 -1.83 1.67
-23 109.4410 99.1858 89.8106 -1.81 1.66
-22 103.3598 93.8305 85.1031 -1.80 1.64
-21 97.6556 88.7989 80.6728 -1.78 1.63
-20 92.3028 84.0695 76.5017 -1.76 1.62
-19 87.2775 79.6222 72.5729 -1.74 1.60
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