Daikin UWL-B5 Series, Каталог/Технические данные

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44
S/N Error Code Symptom Possible Cause Solution
28
The LED indicator
of the unit displays
ER46 and the
wired controller
displays 46
Leaving water
temperature
sensor
malfunction of
evaporator
TH7 temperature sensor is not properly
plugged or has broken off.
Check the control module and replug the
temperature sensor.
TH7 temperature sensor is shorted/ open.
Test whether the resistance of TH7 sensor meets
specification requirements/replace if not.
There is something wrong with the test circuit
of the temperature sensor in the control
module.
Replace the control module.
29
The LED indicator
of the unit displays
ER47and the
wired controller
displays 47
Entering water
temperature
sensor
malfunction of
condenser
TH8 temperature sensor is not properly
plugged or has broken off.
Check the control module and replug the
temperature sensor.
TH8 temperature sensor is shorted/ open.
Test whether the resistance of TH8 sensor meets
specification requirements/replace if not.
There is something wrong with the test circuit
of the temperature sensor in the control
module.
Replace the control module.
30
The LED indicator
of the unit displays
ER48 and the
wired controller
displays 48
Suction
temperature
sensor
malfunction of
#1
TH9 temperature sensor is not properly
plugged or has broken off.
Check the control module and replug the
temperature sensor.
TH9 temperature sensor is shorted/ open.
Test whether the resistance of TH9 sensor meets
specification requirements/replace if not.
There is something wrong with the test circuit
of the temperature sensor in the control
module.
Replace the control module.
31
The LED indicator
of the unit displays
ER49 and the
wired controller
displays 49
Suction
temperature
sensor
malfunction of
#2
TH10 temperature sensor is not properly
plugged or has broken off.
Check the control module and replug the
temperature sensor.
TH10 temperature sensor is shorted/ open.
Test whether the resistance of TH10 sensor
meets specification requirements/replace if not.
There is something wrong with the test circuit
of the temperature sensor in the control
module.
Replace the control module.
32
The LED indicator
of the unit displays
ER50 and the
wired controller
displays 50
Suction
temperature
sensor
malfunction of
#3
TH11 temperature sensor is not properly
plugged or has broken off.
Check the control module and replug the
temperature sensor.
TH11 temperature sensor is shorted/ open.
Test whether the resistance of TH11 sensor meets
specification requirements/replace if not.
There is something wrong with the test circuit
of the temperature sensor in the control
module.
Replace the control module.
33
The LED indicator
of the unit displays
ER51 and the
wired controller
displays 51
Suction
temperature
sensor
malfunction of
#4
TH12 temperature sensor is not properly
plugged or has broken off.
Check the control module and replug the
temperature sensor.
TH12 temperature sensor is shorted/ open.
Test whether the resistance of TH12 sensor
meets specification requirements/replace if not.
There is something wrong with the test circuit
of the temperature sensor in the control
module.
Replace the control module.
34
The LED indicator
of the unit displays
ER52 and the
wired controller
displays 52
Low pressure
sensor
malfunction of
#2
Three lines of the low pressure sensor is
incorrectly connected.
Reconnect the connecting lines of the low
pressure sensor.
The low pressure sensor is shorted/ open.
Repair or replace the lines of the low pressure
sensor.
The Low pressure sensor has broken down Replace the low pressure sensor.
There is something wrong with the test circuit
of the low pressure sensor in the control
module.
Replace the control module.
35
The LED indicator
of the unit displays
ER53 and the wired
controller displays
53
Low pressure
sensor
malfunction of
#1
Three lines of the low pressure sensor is
incorrectly connected.
Reconnect the connecting lines of the low
pressure sensor.
The low pressure sensor is shorted/ open.
Repair or replace the lines of the low pressure
sensor.
The Low pressure sensor has broken down Replace the low pressure sensor.
There is something wrong with the test circuit
of the low pressure sensor in the control
module.
Replace the control module.
36
The LED indicator
of the unit displays
ER54 and the
wired controller
displays 54
Memory failure Memory damage Replace the control module