Unique Klasse DSA-0910LG-M, Service Manual

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((1 13 3)) S Se ellff d diia ag gn no os sttiic c ffo orr e errrro orrs s
* E1 : Room t emper at ur e sensor t r oubl e -nor mal oper at i on (Appears when both temperature
adjust buttons ▲ , ▼ pushed).
Appears on indoor Eva.sensor trouble -stops the operation.
* E2 : Appears on Error and stops the operation.
* E3 : Normal operation (Appears when both temperature adjust buttons
▲ , ▼ pushed)
* E5 : Appears on Error and stops the operation.
Error types
Room temperature
sensor open
Room temperature
sensor short
Indoor Evaporator open
Indoor Evaporator short
Outdoor
sensor open
Outdoor
sensor short
Outdoor
Accumulator open
Outdoor Accumulator
short
Compressor
error
Communication error
between indoor and
outdoor units.
Display
E1
E1
E1
E1
E2
E2
E2
E2
E3
E5
Operation
• Condition :Under 0.3V(-40 °C)
-> Set room temperature 32 °C, normal operation.
-> Room temperature 'Lo'appears.
-> Disappears when sensor return to normal
• Condition :Over 4.7V(90 °C)
->Set room temperature 32 °C, normal operation.
->Room temperature 'Lo'appears.
->Disappears when sensor return to normal
• Condition :Under 0.3V(-40 °C)
-> Immediately stops the operation showing error mark.
• Condition :Over 4.7V(-90 °C)
->Immediately stops the operation showing error mark.
• Condition :Under 0.3V(-40 °C)
->Immediately stops the operation showing error mark.
• Condition :Over 4.7V(-90 °C)
->Immediately stops the operation showing error mark.
• Condition :Under 0.3V(-40 °C)
->Immediately stops the operation showing error mark.
• Condition :Over 4.7V(-90 °C)
->Immediately stops the operation showing error mark.
• Condition : The room temperature does not drop more
than 2 °C aster the compressor working more
than 10 minutes.
->Continue the normal operation.
• Condition : The communication stopped more than 90
seconds.
->Appears E5.
Treatments
• Check the voltage of room
temperature sensor and
resistance at 20 °C.
-> Voltage :2.5V
-> Resistance :20K
• Check the voltage of room
temperature sensor and
resistance at 20 °C.
-> Voltage :2.5V
-> Resistance :20K
• Check the voltage of room
temperature sensor and
resistance at 20 °C
-> Voltage :2.5V
-> Resistance :20K
• Check the voltage of room
temperature sensor and
resistance at 20 °C
-> Voltage :2.5V
-> Resistance :20K
• Check the voltage of room
temperature sensor and
resistance at 20 °C.
-> Voltage :2.5V
-> Resistance :20K
• Check the Compressor
working
• Check the micro switch
connection and any
damage.