SiUS041829E
Troubleshooting
Part 6 Service Diagnosis
101
Troubleshooting
Caution
Be s
u
re to t
u
rn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
NO
YES
T
u
rn off the power.
Check the connection.
Check the power s
u
pply voltage.
Correct the power s
u
pply.
(R22764)
NO
NO
NO
NO
YES
YES
YES
YES
Check No. 20
Check the short circ
u
it of the diode
bridge.
Check No.15
Check with the inverter analyzer.
T
u
rn off the power. Disconnect the
harnesses U, V, and W.
T
u
rn on the power. Check the
electrolytic capacitor voltage.
Electrical
components or
compressor harnesses
connected as
specified?
Replace the o
u
tdoor
u
nit
PCB (main PCB).
Correct the power s
u
pply or
replace the o
u
tdoor
u
nit
PCB (main PCB).
Replace the compressor.
Reconnect the electrical
components or compressor
harnesses as specified.
Replace the o
u
tdoor
u
nit
PCB (main PCB).
Inverter analyzer:
RSUK0917C
Normal?
NO
YES
Check No. 18
Check the discharge press
u
re.
Replace the stop valve.
OK?
Within 320 VDC?
Any LED Off?
+ 100
– 50
Is the
power s
u
pply
voltage fl
u
ct
u
ation within
±10% from the rated
val
u
e?
Содержание FTXR-T Series
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