-
272
-
4
[Cooling overload operation]
Indoor unit
Red LED
Green LED
Stays OFF
Keeps flashing
Red LED
Green LED
1 time flash
Keeps flashing
Outdoor unit
Are the
characteristics of the
outdoor heat exchanger thermistor
normal?
NO
NO
Replace the outdoor heat
exchanger thermistor.
Is the unit normal?
Check the unit side.
Protective stop
Operable
Outdoor air temp. (ºC)
YES
The outdoor control PCB
is faulty. Replace it
Is there cooling overload
operation?
Is high pressure control
normal?
YES
A
58.5
53.5
48.5
B
53.5
48.5
43.5
48
65
(1)
Set temperature for protective control
Compressor speed
(rps)
Indoor heat exchanger
temprature (ºC)
min. to control range less than 88
88 to less than 108
108 or higher to max.
65 or more
60 or more
55 or more
• Is there a short circuit in the outdoor unit?
• Is the installation space proper?
• Is it overcharged?
• Is the heat exchanger dirty or clogged?
(1)When the following conditions are established, compressor speed is
reduced every minute down to the minimum speed at lowest.
Outdoor heat exchanger temperature: A˚C or higher
Outdoor air temperature: 40ºC or higher
The outdoor unit’s fan runs at 7 speed
continuously for 30 seconds
or longer.
(2) Control is cancelled when the temperature drops to BºC or lower.
Model
151~251
Compressor
speed
(rps)
min. to control
range less than 88
88 to less than 108
108 or higher to max.
Item
Note (1) The anomalous stop
temperature differs
depending on the
compressor’s speed.
Is there any gap between
actual temperature and
sensed temperature by
the microcomputer?
5
10
15
0
20
40
60
80
100
Outdoor unit heat exchanger
thermistor(Tho-R)
Resistance-temperature characteristics
Temperature (ºC)
Thermistor resistance (k
Ω)
Error display :
E35
Display conditions
The error occurs when the outdoor heat exchanger tempera-
ture exceeds 65°C 5 times within 60 minutes, or is kept 65°C
or higher.
Models FDCVA151~251
Summary of Contents for FDCVA1002HESAR
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