SiUS041829E
Troubleshooting
Part 6 Service Diagnosis
99
4.19 Compressor System Sensor Abnormality
Error Code
H0
Method of Error
Detection
The system checks the DC current before the compressor starts.
Error Decision
Conditions
The voltage converted from the DC current before compressor start-up is out of the range 0.5 ~
4.5 V.
The DC voltage before compressor start-up is below 50 V.
Supposed
Causes
Broken or disconnected harness
Defective outdoor unit PCB
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
(R24613)
YES
T
u
rn off the power. Then, t
u
rn on
the power to restart the system.
YES
NO
Replace the harness.
Replace the o
u
tdoor
u
nit
PCB (main PCB).
Is the harness broken?
Restart
operation and error displayed
again?
Check the (relay) harness for the
compressor.
Not a malf
u
nction.
Keep observing.
Summary of Contents for FTXR-T Series
Page 17: ...SiUS041829E Part 2 Specifications 13 1 Specifications 14 Part 2 Specifications...
Page 125: ...SiUS041829E Check Part 6 Service Diagnosis 121 18 class R25105 1 2 3 4 Multimeter...
Page 127: ...SiUS041829E Check Part 6 Service Diagnosis 123 18 class R20704 W V U DC_P1 DC_N1...
Page 143: ...SiUS041829E Operation Limit Part 8 Appendix 139 4 Operation Limit RX09 12 18RMVJU9 3D092209E...
