Daikin RZQ140B7W1B [161/326] Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred

Daikin RZQ100B8V3B [161/326] Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred
ESIE05-03 Troubleshooting
Part 3 Troubleshooting 3–13
33
4
5
1
Troubleshooting
Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be
occurred.
After vacuum drying, charge
correct amount of refrigerant.
Then, start operation again.
Malfunction of compressor
Power
supply voltage is
within ±10 % of specified
voltage.
Is the
size of power cable
through total length
correct?
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?
Turn the operation switch ON
and OFF, then wait at ON side.
Check on the cause why
overcurrent relay (for
compressor) or compressor
protection thermostat acted.
Does
the unit start operation
after 3 minutes?
Is the
discharge side of
compressor hot after unit
stop?
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
NO
YES
YES
YES
YES
YES
NO
NO
NO
NO
YES
[Electric system]
[Refrigerant circuit]
Not so hot
NO
ESIE05-03.book Page 13 Wednesday, April 6, 2005 4:09 PM

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