Th6 Temperature Sensor; Th7 Temperature Sensor; Th8 Temperature Sensor - Daikin UHA075B5 Catalogue/Engineering Data

S/N Error code
The LED indicator of the unit
27 displays ER43 and the wired
controller displays 43
The LED indicator of the unit
28 displays ER44 and the wired
controller displays 44
The LED indicator of the unit
29 displays ER45 and the wired
controller displays 45
The LED indicator of the unit
30 displays ER46 and the wired
controller displays 46
The LED indicator of the unit
31 displays ER47 and the wired
controller displays 47
Symptom
TH4 temperature sensor
malfunction
TH5 temperature sensor
malfunction

TH6 temperature sensor

malfunction

TH7 temperature sensor

malfunction

TH8 temperature sensor

malfunction
Possible cause
TH4 temperature sensor is
not properly plugged or has
broken off
TH4 temperature sensor is
shorted/ open
There is something wrong
with the test circuit of the
temperature sensor in the
control module
TH5 temperature sensor is
not properly plugged or has
broken off
TH5 temperature sensor is
shorted/ open
There is something wrong
with the test circuit of the
temperature sensor in the
control module
TH6 temperature sensor is
not properly plugged or has
broken off
TH6 temperature sensor is
shorted/ open
There is something wrong
with the test circuit of the
temperature sensor in the
control module
TH7 temperature sensor is
not properly plugged or has
broken off
TH7 temperature sensor is
shorted/ open
There is something wrong
with the test circuit of the
temperature sensor in the
control module
TH8 temperature sensor is
not properly plugged or has
broken off
TH8 temperature sensor is
shorted/ open
There is something wrong
with the test circuit of the
temperature sensor in the
control module
Solution
Check the control module
and replug the temperature
sensor
Test whether the resistance
of TH4 sensor meets
specification requirements/
replace if not
Replace the control module
Check the control module
and replug the temperature
sensor
Test whether the resistance
of TH5 sensor meets
specification requirements/
replace if not
Replace the control module
Check the control module
and replug the temperature
sensor
Test whether the resistance
of TH6 sensor meets
specification requirements/
replace if not
Replace the control module
Check the control module
and replug the temperature
sensor
Test whether the resistance
of TH7 sensor meets
specification requirements/
replace if not
Replace the control module
Check the control module
and replug the temperature
sensor
Test whether the resistance
of TH8 sensor meets
specification requirements/
replace if not
Replace the control module
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