Troubleshooting
SiUS042113E
104
Part 6 Service Diagnosis
4.11 Outdoor Unit PCB Abnormality
Error Code
E1
Method of Error
Detection
The system checks if the microprocessor is working in order.
The system checks if the zero-cross signal comes in properly.
Error Decision
Conditions
The microprocessor program runs out of control.
The zero-cross signal is not detected.
Supposed
Causes
Defective outdoor unit PCB
Noise
Momentary drop of voltage
Momentary power failure
Troubleshooting
(R21809)
Caution
Be s
u
re to t
u
rn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
YES
NO
NO
YES
Replace the o
u
tdoor
u
nit PCB
(main PCB).
Gro
u
nd the system.
The ca
u
se can be external
factors other than malf
u
nction.
Investigate the ca
u
se of noise.
T
u
rn on the power.
Error again?
Check if the o
u
tdoor
u
nit is
gro
u
nded.
Gro
u
nded?
Содержание FTXM-V Series
Страница 13: ...SiUS042113E Part 1 General Information 9 1 Applicable Models 10 2 Functions 11 Part 1 General Information...
Страница 16: ...SiUS042113E 12 Part 2 Specifications 1 Specifications 13 Part 2 Specifications...
Страница 96: ...Troubleshooting SiUS042113E 92 Part 6 Service Diagnosis Reference Check No 01 Refer to P 134...
Страница 147: ...SiUS042113E Check Part 6 Service Diagnosis 143 09 12 class 18 24 class 1 2 3 4 Multimeter R24538 1 2 3 4 Multimeter...
Страница 150: ...Check SiUS042113E 146 Part 6 Service Diagnosis 18 24 class R24539 DC DC W V U...
Страница 165: ...SiUS042113E Piping Diagrams Part 8 Appendix 161 1 2 Outdoor Unit RXM09 12VVJU RXM18VVJU 3D131979 3D132216...
Страница 166: ...Piping Diagrams SiUS042113E 162 Part 8 Appendix RXM24VVJU 3D132217...
Страница 171: ...SiUS042113E Operation Limit Part 8 Appendix 167 3 Operation Limit RXM09 12 18 24VVJU 3D133582A...
