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C
h
e
c
k
c
o
d
e
Compressor trouble (Lock)
(
H
-
H
W
M
[A17]
Is power supply voltage of H-
HWM normal?
AC198 to 264V
Is wire connection correct?
Compressor lead
(P.C. board side, Compressor
side),
Reactor lead, Power supply
lead
Is compressor under correct
conditions?
YES
C
h
e
c
k
c
o
d
e
n
a
m
e
)
YES
YES
NO
Is there refrigerant
stagnation?
YES
Does PMV 2 correctly
operate?
YES
C
1. H-HWM power line trouble
. 2
C
o
m
p
e r
s s
r o
i c
c r
u
t i
3. Compressor trouble
4. Refrigerant stagnation in compressor shell
5. IPDU P.C. board trouble
6. TE, TS, PMV 2 trouble
NO
Correct power supply line.
NO
Check wire connection
NO
Compressor lock →
Check TE, TS sensors
NO
Failure → Replace
Check IPDU P.C. board
– 78 –
a
u
s
e
s
s y
e t
m
t
o r
u
b
e l
and correct it.
Replace
and PMV 2 of
H-HWM.
of H-HWM.
Failure → Replace.
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Table of Contents
Troubleshooting
