Specifications

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