Hisense AVWT-192FFFH User Manual

153
Troubleshooting
Alarm
Code
23
Abnormality of Thermistor for Discharge Gas
Temperature on the Top of Compressor
● The RUN indicator (Red) is ashing
● The indoor unit number, the alarm code, the unit model code and the connected number of indoor units are displayed on
LCD. Meanwhile, the indoor unit number and the alarm code are displayed on the 7-segment of outdoor unit PCB. (For
the combination of outdoor units, the alarm code is displayed on PCB of outdoor unit A.) Additionally for the outdoor unit
number and compressor number with abnormal thermistor, check the alarm code history.
★
This alarm code is indicated when a short circuit (less than 0.9kΩ) for a second or disconnection (more than 5946kΩ) of
the thermistor is detected during the operation.
Yes
Yes
Set DSW2 on
O.U. PCB correctly.
No
Connect them.
No
Faulty Thermistor.
No
Faulty O.U. PCB
Is the setting of DSW2
on O.U. PCB right?
Are discharge gas
thermistors (THM8,
THM9) connected to THM8
(TD1) and THM9 (TD2)
on O.U. PCB?
Yes
Is resistance of
discharge gas thermistors
(THM8 and THM9)
the same as characteristic
in right figure?
Cause Check Item
Action
(Turn OFF Main Switch)
Phenomenon
Faulty Discharge
Gas Thermistor
Check resistance.
Replace thermistor
if faulty.
Fault
Check wiring to
O.U. PCB.
Repair wiring and
connections.
Incorrect Connection
Replace O.U. PCB
and check operation.
Replace O.U. PCB
if faulty.
Faulty O.U. PCB
Check setting of
DSW2 on O.U. PCB.
Correctly set
DSW2 on O.U. PCB.
Incorrect Setting of DSW2 on O.U. PCB
200
100
R25=200kΩ
B=3920k
72.3
14.2
8.32
0
Ambient Temperature (°F)
Resistance
of Thermistor
(kΩ)
Characteristics of Thermistor
Model
Thermistor
Td1
(THM8)
Td2
(THM9)
Single Comp.
-
Dual Comp.
In the case of the combination of
outdoor units, each outdoor unit detect
abnormality.
O.U. PCB: Outdoor Unit PCB

Hisense AVWT-192FFFH Specifications

General

Brand	Hisense
Model	AVWT-192FFFH
Category	Air Conditioner
Language	English