Hisense AVWT-192FFFH User Manual

154
Troubleshooting
Alarm
Code
24
Abnormality of Thermistor for Outdoor Unit Heat
Exchanger Liquid Pipe (Te1/Te2/Tchg/Tsc)
● 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 0.24kΩ) or disconnection (more than 840kΩ) of the thermistor
is detected continuously for 8 minutes during the operation.
Connect it.
No
Faulty Thermistor
Faulty O.U. PCB
No
Are thermistors connected to
THM10 (Te1) /THM12 (Te2)/
THM17 (Tchg)/THM19(Tsc)
on O.U. PCB?
Is resistance of the
thermistors between
0.24kΩ and 840kΩ?
Yes
Yes
Te1/Te1: thermistor for outdoor liquid pipe
Tchg: thermistor for super cooling main line
Tsc: thermistor for inlet pipe of the super cooler
O.U. PCB: outdoor unit PCB
HEX. : heat exchanger
Cause Check Item
Action
(Turn OFF Main Switch)
Phenomenon
Faulty Thermistor
for Evaporating
Temperature
during Heating
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
NOTE:
This figure is applicable to the
following thermistors.
1. Ambient Temperature Thermistor (THM7)
2. Evaporation Liquid Line Thermistor (THM10/THM12)
3. Evaporation Gas Line Thermistor (THM11)
4. Super Cooling Main Line Thermistor (THM17)
5. Super Cooling Bypass Line Thermistor (THM23)
6. Inlet Pipe of The Super Cooler Thermistor (THM19)
Model
Thermistor
Te1
(THM10)
Te2
(THM12)
Single HEX.
-
Dual HEX.
In the case of the combination of
outdoor units, each outdoor unit detect
abnormality.
0
10
20
30
40
50
60
70
80
83
58
44
34
26
20.4
16
12.6
10
8
6.4
3.5
2.3
90
Thermistor Resistance(k�)
5 14 32 41 23 50 59 68 77 86 95 104 113 122 131 140
Ambient Temperature (°F)
Thermistor Characteristics

Hisense AVWT-192FFFH Specifications

General

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