emmeti XECO Serie Manual Instalación E Instrucciones Para El Uso De La Unidad Interna página 57

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9. MALFUNCTION
1. DESCRIZIONE DEI COMPONENTI
Malfunction
NO
Name
Abnormal evaporator
13
temperature sensor of
indoor unit
Abnormal ambient
14
temperature sensor of
outdoor unit
Abnormal condenser
15
temperature sensor of
outdoor unit
Abnormal flow
16
temperature sensor of
outdoor unit
Reduced frequency due
17
to overload
Reduced frequency due
18
to overcurrent
Reduced frequency due
19
to overheating exhaust
air
Reduced frequency
due to
20
for anti-freezing of
indoor unit
Voltage too high for the
21
electronic board
Voltage too low for the
22
electronic board
State of tests:
23
Minimum compressor
frequency
Display Method of Indoor Unit
Indicator Display ((during
blinking, ON 0.5s and OFF 0.5s)
Display
RUN
COOL
OFF 3s
F2
and blink
2 times
OFF 3s
F3
and blink
3 times
OFF 3s
F4
and blink
4 times
OFF 3s
F5
and blink
5 times
OFF 3s
F6
and blink
6 times
OFF 3s
F8
and blink
8 times
OFF 3s
F9
and blink
9 times
OFF 3s
FH
and blink
2 times
OFF 3s
PH
and blink
11 times
OFF 3s
PL
and blink
21 times
P0
A/C status
HEAT
Cooling and dehumidification:
compressor and outdoor fan stops
while the indoor fan continues to run.
Heating: the entire unit stops.
Cooling and dehumidification:
compressor and outdoor fan stops
while the indoor fan continues to run.
Heating: the entire unit stops.
Cooling and dehumidification:
compressor and outdoor fan stops
while the indoor fan continues to run.
Heating: the entire unit stops.
Dehumidification and cooling: the
compressor stops after running for
about 3 minutes, while the indoor fan
continues to run. Heating the entire
unit stops after running for about 3
minutes.
The entire unit operate normally,
but the working frequency of the
compressor is reduced
The entire unit operate normally,
but the working frequency of the
compressor is reduced
The entire unit operate normally,
but the working frequency of the
compressor is reduced
OFF 3s
The entire unit operate normally,
and blink
but the working frequency of the
compressor is reduced
2 times
Cooling and dehumidification:
compressor and outdoor fan stops
while the indoor fan continues to run.
Heating: the entire unit stops.
Cooling and dehumidification:
compressor and outdoor fan stops
while the indoor fan continues to run.
Heating: the entire unit stops.
GB
GB
Possible Causes
1. Loose or bad contact of the
temperature sensor with the
Electronic board;
2. Temperature sensor damaged;
3. Electronic board unit damaged;
4. The head of the temperature sensor
is not inserted inside the copper
pipe.
1. Loose or bad contact of the
temperature sensor with the
Electronic board;
2. Temperature sensor damaged;
3. Electronic board outdoor unit
damaged;
1. Loose or bad contact of the
temperature sensor with the
Electronic board;
2. Temperature sensor damaged;
3. Electronic board outdoor unit
damaged;
4. The head of the temperature sensor
is not inserted inside the copper
pipe.
1. Loose or bad contact of the
temperature sensor with the
Electronic board;
2. Temperature sensor damaged;
3. Electronic board outdoor unit
damaged;
4. The head of the temperature sensor
is not inserted inside the copper
pipe.
1. Low supply voltage;
2. Overabundance of refrigerant;
3. Ambient temperature is too high;
4. Poor heat exchange (exchanger
dirty or poor air circulation).
1. Low supply voltage;
2. Overabundance of refrigerant;
3. Ambient temperature is too high;
4. Poor heat exchange (exchanger
dirty or poor air circulation).
1. Ambient temperature is too high;
2. Insufficient refrigerant;
3. Malfunction of electronic expansion
valve.
1. Poor heat exchange (exchanger
dirty or poor air circulation).
2. Indoor unit fan speed is too low;
1. Voltage between L and N on the
terminal higer then 265 VAC;
2. Wiring loose (the unit must be
powered off for at least 20 minutes
before checking the wiring);
3. Electronic board damaged.
1. Voltage between L and N on the
terminal less than 150 VAC;
2. Wiring loose (the unit must be
powered off for at least 20 minutes
before checking the wiring);
3. Electronic board damaged.
Displayed during tests of minimum
cooling or minimum heating
57

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