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SiME341909EA
Troubleshooting by Error Code
Part 6 Service Diagnosis
207
Troubleshooting
Connect the Ser
v
ice Checker.
Mo
u
nt a press
u
re ga
u
ge on the
high press
u
re ser
v
ice port.
Reset the operation, and then
restart the operation.
Stop the rele
v
ant indoor
u
nits
w
hile
the system is in cooling operation,
and then check for the li
qu
id pipe
temperat
u
re of these indoor
u
nits
after the system is sta
b
ilized.
The li
qu
id pipe
temperat
u
re is lo
w
(e
qu
i
v
alent to the e
v
aporating
temperat
u
re).
Clean the air filters
of the indoor
u
nits.
N
O
YES
N
O
Replace the indoor
electronic expansion
v
al
v
e.
Replace the rele
v
ant
thermistor.
YES
YES
Caution
Be s
u
re to t
u
rn off the po
w
er s
w
itch
b
efore connecting or disconnecting
connectors, or parts may
b
e damaged.
Are the
characteristics of the
s
u
ction pipe thermistor
normal?
N
O
Replace the discharge
pipe thermistor.
Are the
discharge pipe
thermistor characteristics
normal?
YES
N
O
Replace the high
press
u
re sensor
(S1
N
PH).
Are the
high press
u
re sensor
characteristics
normal?
Service Checker
Use the Ser
v
ice Checker to find indoor
u
nits
operating
u
nder the follo
w
ing conditions:
&
• Gas pipe temperat
u
re (R6T) - Li
qu
id pipe temperat
u
re (R4T) < 2.5˚C
• Electronic expansion
v
al
v
e opening < 300 p
u
lse
Summary of Contents for VRV X RXQ10ARYFK
Page 1: ...Service Manual Cooling Only 50 60 Hz RXQ6 48A N R Series SiME341909EA...
Page 289: ...SiME341909EA Wiring Diagrams Part 7 Appendix 283 RXQ10 12ARYFK 2D124184...
Page 290: ...Wiring Diagrams SiME341909EA 284 Part 7 Appendix RXQ14 16ARYFK 2D124183...
Page 295: ...SiME341909EA Wiring Diagrams Part 7 Appendix 289 FXMQ40 50 63 80 100ARV1 3D127112 04 59...