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SiUS28-902_a
Troubleshooting by Indication on the Remote Controller
Troubleshooting
112
3.21 “
F6
” Outdoor Unit: Refrigerant Overcharged
Remote
Controller
Display
F6
Applicable
Models
RZQ18~30PVJU
Method of
Malfunction
Detection
Excessive charging of refrigerant is detected by using the heat exchanging deicer temperature
during a check operation.
Malfunction
Decision
Conditions
When the amount of refrigerant, which is calculated by using the heat exchanging deicer
temperature during a check run, exceeds the standard.
Supposed
Causes
Refrigerant overcharge
Misalignment of the thermistor for heat exchanger
Defect of the thermistor for heat exchanger
Troubleshooting
Refer to “Thermistor Resistance / Temperature Characteristics” table on P.166.
Caution
Be s
u
re to t
u
rn off the po
w
er s
w
itch
b
efore connecting or disconnecting
the connector, or parts co
u
ld
b
e damaged.
Are the
a
b
o
v
e thermistor
installed on pipes
correctly?
Check the mo
u
nting condition
of the temperat
u
re sensors of
the heat exchanging deicer
thermistor in the piping.
Remo
v
e the heat exchanging
deicer thermistor from the
o
u
tdoor P.C.B. and meas
u
re
resistance
w
ith a tester.
Is the
characteristic of the
a
b
o
v
e thermistor
normal?
Refrigerant o
v
ercharged.
YES
N
O
N
O
Replace the thermistor.
Install the thermistor correctly.
YES
Summary of Contents for SkyAir FCQ18PVJU
Page 1: ...Split System Air Conditioners SkyAir Inverter R 410A Heat Pump 60Hz P Series SiUS28 902_a...
Page 44: ...Other Control SiUS28 902_a 37 Function...
Page 81: ...SiUS28 902_a Troubleshooting by Remote Controller Troubleshooting 74...
Page 185: ...SiUS28 902 Precautions for New Refrigerant R 410A Precautions for New Refrigerant R 410A 178...