Mitsubishi Heavy Industries FDURA501 User Manual

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149
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7
[Defective outdoor unit heat exchanger thermistor]
Indoor unit
Red LED
Green LED
Stays OFF
Keeps flashing
Red LED
Green LED
1 time flash
Keeps flashing
Outdoor unit
Temperature (°C)
15
10
5
010 304020 50
5kΩ at 25°C
Is the outdoor
unit heat exchanger
thermistor connector
OK?
Repair
NO
YES
NO
YES
Are the outdoor unit
heat exchanger thermistor
characteristics OK, is there
any broken wire?
Defective outdoor unit
heat exchanger
thermistor Replacement
Defective outdoor unit control
PCB Replacement (Defective
outdoor unit heat exchanger
thermistor input circuit)
Outdoor unit heat exchanger
thermistor (Th O- R)
Resistance temperature characteristics
Resistance
(kΩ)
Error display :
e37
● Display conditions
If the temperature sensed by the thermistor is
–
30 (
–
50) ºC or lower
continuously for 5 seconds between 2 minutes and 2 minutes 20 sec-
onds after the compressor goes ON, the compressor stops. After a 3
minute delay, the compressor restarts. If this state is detected 3 times
in 60 (40) minutes.
Note (1) Values in ( ) show for the case of the FDCA801, 1001 models.
300
400
200
100
0
30
40
20
10
0
---50
050
Temperature [T](°C)
T < 0°C
T > 0°C
Is the outdoor
air temperature thermistor
connector connection
OK?
Repair
NO
NO
YES
YES
Is the outdoor
air temperature thermistor
characteristics OK, is there
no broken wire?
Defective outdoor air
temperature thermistor
Replacement
Defective outdoor unit control PCB
Replacement (Defective outdoor air
temperature thermistor input circuit)
Temperature-resistance
characteristics of outdoor air
temperature thermistor (Th O- A)
Thermistor resistance
(kΩ)[T<0°C]
Thermistor resistance
(kΩ)[T>0°C]
● Display conditions
If the temperature sensed by the thermistor is
–
30ºC or lower continu-
ously for 5 seconds between 2 minutes and 2 minutes 20 seconds after
the compressor goes ON, the compressor stops. After a 3 minute delay,
the compressor restarts. If this state is detected 3 times in 60 (40) min-
utes.
8
[Defective outdoor air temperature thermistor]
Indoor unit
Red LED
Green LED
Stays OFF
Keeps flashing
Red LED
Green LED
1 time flash
Keeps flashing
Outdoor unit
Error display :
e38
Note (1) Values in ( ) show for the case of the FDCA801, 1001 models.

Mitsubishi Heavy Industries FDURA501 Specifications

General

Brand	Mitsubishi Heavy Industries
Model	FDURA501
Category	Air Conditioner
Language	English