Johnson Controls york YSHC18FSAADG, Service Manual

Page: 32 / 59

Trouble shooting
Before asking for service, check the following first.
Normal
Performance
inspection
Noise is heard
Phenomenon
Cause or check points
The system does not restart
immediately.
Smells are generated.
Mist or steam are blown out.
Multiple
check
Poor cooling
Application temp. range of air conditioner -7
o
C~43
o
C.
When unit is stopped, it won't restart
elapsed to protect the system.
When the electric plug is pulled out
and reinserted, the protection circuit
During unit operation or at stop,
a swishing or gurgling noise may
(This noise is generated by
refrigerant flowing in the system.)
During unit operation, a cracking
noise may be heard.This noise is
temperature changes.
Should there be a big noise from
filter may be too dirty.
This is because the system
circulates smells from the interior
During COOL or DRY operation,
This is due to the sudden cooling
Is power plug inserted?
Is there a power failure?
Is fuse blownout?
Is the air filter dirty?
Are there any obstacles before
Is temperature set correctly?
Are there some doors or
Is there any direct sunlight
through the window during the
Are there too much heat sources
or too many people in the room
In dry mode, fan
speed can’t be changed.
In DRY mode, when room
than temp.2
o
C,unit will
regardless of FAN setting.
Maximum: D.B
10.The appliance must be installed on a strong enough support.
9.Young children should be supervised ensure that they do not
play with the appliance.
8.The appliance is not intended to use by young children or infirm
persons without supervision.
7.The used batteries should be disposed of properly.
6. After installation, the power plug should be easily reached..
5.The wiring method should be in line with the local wiring standard.
4.The distance between the indoor unit and the floor should be
more than 2m.
3. If the fuse on PC board is broken please change it with a fuse
type T. 3.15A/250V.
11.The wiring diagram is attached inside the machine.
2. If the supply cord is damaged, it must be replaced by the
manufacturer or its service agent or a similar qualified person.
The type of connecting wire is H05RN-F or H07RN-F
Cautions
The machine is adaptive in following situation
1.Applicable ambient temperature range:
Cooling
Heating
Indoor
Outdoor
Outdoor
Indoor
Maximum: D.B / W.B 32
o
C/23
o
C
18
o
C/14
o
C
43
o
C/26
o
C
18
o
C
27
o
C
15
o
C
24
o
C/18
o
C
-7
o
C/-8
o
C
Minimum: D.B / W.B
Minimum: D.B
Maximum: D.B
Minimum: D.B
Maximum: D.B / W.B
Minimum: D.B / W.B
For: T3
Cooling
Heating
Indoor
Outdoor
Indoor
Outdoor
Maximum: D.B / W.B
Minimum: D.B / W.B
Maximum: D.B / W.B
Minimum: D.B
Maximum: D.B
Minimum: D.B
Maximum: D.B / W.B
Minimum: D.B / W.B
29
o
C/19
o
C
18
o
C/14
o
C
54
o
C/24
o
C
18
o
C
27
o
C
15
o
C
24
o
C/18
o
C
-7
o
C/-8
o
C
For: T1
during cooling operation?
cooling operation?(Use curtain)
windows left open?
inlet and outlet?
Normally it should be cleaned
every 15 days.
run intermittently at LOW speed
temperature becomeslower
indoor unit may blow out mist.
of indoor air.
air such as the smell of furniture,
paint, cigarettes.
air flow in unit operation, air
generated by the casing expanding
or shrinking because of
be heard.At first 2-3 minutes after
unit start, this noise is more noticeable.
will work for 3 minutes to protect the
air conditioner.
immediately until 3 minutes have
If the fuse of outdoor unit on PC board is broken, please change
it with the type of T. 25A/250V.
Application temp. range of air conditioner -7
o
C~54
o
C.
T1:
T3:
30
YSHC18/24FSAADG
System Configuration
Domestic Air Conditioner