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SiENBE04-512A
Check
Service Diagnosis
135
5.1.7 Power Supply Waveforms Check
Check No.10
Measure the power supply waveform between pins 1 and 3 on the terminal board, and check
the waveform disturbance.
Check to see if the power supply waveform is a sine wave (Fig.1).
Check to see if there is waveform disturbance near the zero cross (sections circled in Fig.2)
5.1.8 Inverter Units Refrigerant System Check
Check No.11
[Fig.1]
[Fig.2]
Refriger
a
nt
s
y
s
tem check
Check for g
as
le
a
k
s
.
S
ee the
s
ection on in
su
fficient g
as
detection.
Cond
u
ct the check
a
fter oper
a
ting the
e
qu
ipment for
a
su
fficient length of time.
Correct the pro
b
lem.
Cond
u
ct v
a
c
uu
m drying.
Repl
a
ce the refriger
a
nt.
I
s
the di
s
ch
a
rge
thermi
s
ter di
s
connected from
the holder?
(R1445)
YE
S
YE
S
YE
S
I
s
a
ny moi
s
t
u
re
fo
u
nd in
s
ight gl
ass
.
NO
NO
SiENBE04-512A.book Page 135 Friday, October 5, 2007 1:49 PM
Summary of Contents for ARKH20CVMB7
Page 1: ...SiENBE04 512A Service Manual Inverter Pair Wall Mounted Type C Series D Series ...
Page 17: ...List of Functions SiENBE04 512A 8 List of Functions ...
Page 37: ...Specifications SiENBE04 512A 28 Specifications ...
Page 73: ...Control Specification SiENBE04 512A 64 Function and Control ...
Page 103: ...Instruction SiENBE04 512A 94 System Configuration ...
Page 147: ...Check SiENBE04 512A 138 Service Diagnosis ...
Page 225: ...Outdoor Unit RK X H C ARK X H C R Y N C SiENBE04 512A 216 Removal Procedure ...
Page 229: ...Others SiENBE04 512A 220 Others ...
Page 241: ...Wiring Diagrams SiENBE04 512A 232 Appendix ...