Daikin SkyAir Super Inverter 70 D Series, Руководство по обслуживанию

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Troubleshooting Based on Equipment Condition SiE25-110
112 Troubleshooting
3.5 After Equipment Shuts Down, It cannot be Restarted for
a While.
Applicable Model All models of SkyAir series
Error Detection
Method
Error Generating
Condition
Possible Cause
Overcurrent relay (for compressor)
Compressor protection thermostat
Overcurrent relay may act due to the following reasons
Lower voltage of power supply
Excess level of high pressure
Insufficient size of power cable
Malfunction of compressor
Compressor protection thermostat may act due to the following reasons
Internal leakage of four-way valve (There is no difference between suction and discharge
temperature)
Insufficient compression of compressor
Incorrect refrigerant
Faulty expansion valve
Insufficient circulation of refrigerant
Troubleshooting
Normal. Unit is in 3-min
standby mode
Contact power company
Check compressor
Replace power cable
Expansion valve
malfunction
Four-way valve malfunction
Check compressor
Turn the operation switch ON
and OFF, then wait at ON
side.
After vacuum drying, charge
correct amount of refrigerant.
Then, start operation again.
NO
YES
YES
YES
Malfunction of compressor
YES
YES
Is the
discharge side of
compressor hot after unit
stop?
Is there any
temperature difference
between inlet and outlet
of expansion
valve?
Is
there any
temperature difference
between suction side and
discharge side of
four-way
valve?
Power
supply voltage is within
±10 % of specified
voltage.
Is the
size of power cable
through total length
correct?
Does the unit
start operation after
3 minutes?
NO
NO
NO
NO
YES
[Electric system]
[Refrigerant circuit]
Not so hot
NO
(S1993)
Check on the cause why
overcurrent relay (for
compressor) or compressor
protection thermostat acted.
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.