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Troubleshooting by Remote Controller
SiUS28-902_a
81
Troubleshooting
Malfunction code indication by outdoor unit P.C.B.
<Selection of setting item>
<Monitor mode>
<Confirmation of malfunction 1>
To enter the monitor mode, push the
MODE (BS1) button when in
“Setting mode 1”.
Push the SET (BS2) button and set
the LED display to a setting item.
Push the RETURN (BS3) button
once to display "First digit" of
malfunction code.
<Confirmation of malfunction 2>
Push the SET (BS2) button once to
display "Second digit" of malfunction
code.
Push the RETURN (BS3) button and
switches to the initial status of
“Monitor mode”.
∗
Push the MODE (BS1) button and
returns to “Setting mode 1”.
<Confirmation of malfunction 3>
Push the SET (BS2) button once to
display "malfunction location".
Detail
description
on next
page.
<Confirmation of malfunction 4>
Push the SET (BS2) button once to
display "master or slave 1 or slave 2"
and "malfunction location".
Contents of malfunction
Malfunction
code
In-phase malfunction of DIII-Net
Detection of DIII-Net
E1
Abnormal discharge pressure
HPS activated
E3
Abnormal suction pressure
Abnormal Pe
E4
Compressor lock
Detection of INV. compressor lock
E5
Over load, overcurrent,
Detection of DC fan 1 motor lock
E7
Malfunction of electronic expansion
EV1
E9
Faulty sensor of outdoor air
temperature
Faulty Ta sensor (short)
H9
Abnormal discharge pipe temperature
Abnormal Td
F3
Abnormal heat exchanger temperature Refrigerant over charge
F6
Faulty sensor of discharge pipe
temperature
Faulty Tdi sensor (short)
J3
Faulty sensor of suction pipe
temperature
Faulty Ts1 sensor (short)
J5
Faulty Ts2 sensor (short)
Faulty sensor of heat exchanger
temperature
Faulty Tb sensor (short)
J6
Faulty sensor of discharge pressure
Faulty Pc sensor (short)
JA
Faulty sensor of suction pressure
Faulty Pe sensor (short)
JC
Faulty Inverter P.C.B.
Faulty IPM
L1
Abnormal Current sensor offset
Abnormal IGBT
Faulty Current sensor
Abnormal SP-PAM over-voltage
Inverter radiation fin temperature rising Over heating of inverter radiation fin temperature
L4
DC output overcurrent
Inverter instantaneous overcurrent
L5
Electronic thermal
Electronic thermal switch 1
L8
Electronic thermal switch 2
Out-of-step
Speed down after startup
Lightening detection
Stall prevention (Limit time)
Stall prevention (Current increasing)
L9
Stall prevention (Faulty start up)
Abnormal wave form in startup
Out-of-step
Transmission error between inverter
and outdoor unit
Inverter transmission error
LC
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...