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SiBE04-624_B
Troubleshooting
Check No.20
Refer to P.142
[Installation]
Service Diagnosis
Be sure to turn off the power switch before connecting or disconnecting
Caution
connectors, or parts may be damaged.
[Power supply]
Is the capacity of
safety breaker as
specified?
YES
Does the earth leakage
breaker work?
NO
Is it an exclusive circuit?
YES
Is the size of wire for
the exclusive circuit as
specified?
YES
Is the supply voltage
within the rated voltage
±10%?
YES
Is there required
installation space?
YES
Is the size of the
connecting wire as
specified?
YES
Check No. 20
Short circuit check
OK?
YES
· Air is mixed.
· Overfilling of refrigerant
NO
YES
NO
NO
NO
NO
NO
NO
Remove the fan motor or the
four way valve coil and check.
Check No. 20
Short circuit check
OK?
YES
Troubleshooting
Replace the safety breaker
to a specified one.
Increase the set value of
the earth leakage current
on the breaker (or replace
the breaker).
Use the exclusive circuit.
Replace the wire to a
specified one by referring to
the electric wire distance
described in the installation
manual.
Contact with an electric
power company.
Provide the required space.
Replace the wire to the
specified one.
NO
Replace the outdoor unit
PCB.
Replace the fan motor or
the four way valve coil.
Conduct vacuum drying, fill
the refrigerant of specified
volume.
(R18117)
81
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