72
#
Malfunction
Name
Indoor Unit Display
Method
Outdoor Unit
Display Method
(repeated every 5
seconds)
o
= Off
n
= Illuminated
«
= Blink
A/C Status
Possible Causes
Indoor
Display
Cool
Indicator
9
Indoor ambient
temperature
sensor is open/
short circuited
F1
Off 3S and
blink once
During cooling and drying
operation, indoor unit op-
erates while other loads will
stop, during heating opera-
tion, the complete unit will
stop operation.
1. Loosening or bad
contact of indoor ambient
temp sensor and main-
board terminal; 2. Com-
ponents in mainboard fell
down leads short circuit;
3. Indoor ambient temp
sensor damaged (check
with sensor resistance
value chart); 4. Mainboard
damaged.
10
Overcurrent
protection of
phase current
for compressor
P5
Off 3S and
blink 15 times
o
«
o
o
During cooling and drying
operation, indoor unit op-
erates while other loads will
stop, during heating opera-
tion, the complete unit will
stop operation.
Refer to the malfunction
analysis (IPM protec-
tion, loss of synchronism
protection and overcurrent
protection of phase current
for compressor).
11
Indoor evapora-
tor temperature
sensor is open/
short circuited
F2
Off 3S and
blink twice
AC stops operation once
reaches the setting tem-
perature. Cooling, drying;
internal fan motor stops
operation while other loads
stop operation; heating: AC
stop operation
1. Loosening or bad con-
tact of indoor evaporator
temp sensor and main-
board terminal; 2. Com-
ponents on the mainboard
fall; 3. Indoor evaporator
temp sensor damaged; 4.
Mainboard damaged.
12
Outdoor ambi-
ent temperature
sensor is open/
short circuited
F3
Off 3S and
blink 3 times
o
o
«
n
During cooling and drying
operating, compressor stops
while indoor fan operates;
During heating operation,
the complete unit will stop
operation.
Outdoor temperature
sensor hasn’t been con-
nected well or is damaged.
Please check it by referring
to the resistance table for
temperature sensor
13
Outdoor con-
denser tem-
perature sensor
is open/short
circuited
F4
Off 3S and
blink 4 times
o
o
«
o
During cooling and drying
operation, compressor stops
while indoor fan will operate;
During heating operation,
the complete unit will stop
operation.
Outdoor temperature
sensor hasn’t been con-
nected well or is damaged.
Please check it by referring
to the resistance table for
temperature sensor
14
Outdoor dis-
charge tem-
perature sensor
is open/short
circuited
F5
Off 3S and
blink 5 times
«
«
«
During cooling and drying
operation, compressor will
sop after operating for about
3 mins, while indoor fan
will operate. During heating
operation, the complete unit
will stop after operating for
about 3 mins.
1. Outdoor temperature
sensor hasn’t been con-
nected well or is damaged.
Please check it by referring
to the resistance table for
temperature sensor; 2. The
head of temperature sensor
hasn’t been inserted into
the copper tube.
Troubleshooting 18,000/24,000 btuh Units, cont.
Содержание TERRA09HP230V1A
Страница 13: ...13 Product Introduction Operation Characteristic Curve ...
Страница 14: ...14 Product Introduction Capacity Variation Ratio According to Temperature ...
Страница 16: ...16 Noise Criteria Curve Tables Product Introduction ...
Страница 54: ...54 Electrical Schematics ...
Страница 135: ...135 Gree Electric Appliances Inc C 2014 Cat No DFS TERRA HP 2SM Version 2 0 ...