Daikin RMXS-L Series, Руководство по обслуживанию

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Troubleshooting with LED SiUS181305E
141 Troubleshooting
<Selection of check item>
<Monitor mode>
<Confirmation of malfunction 1>
Press the MODE ( BS1 ) button and
enter the monitor mode.
Press the SET ( BS2 ) button and
select a check item according to the
LED pattern of No.14~16 and
No.20~22.
Refer to page 102 for check items.
Press the RETURN ( BS3 ) button
once to display the first digit of error
code.
<Confirmation of malfunction 2>
Press the SET ( BS2 ) button once to
display the second digit of error
code.
Press the RETURN ( BS3 ) button
and return to the initial status of
monitor mode.
<Confirmation of malfunction 3>
Press the SET ( BS2 ) button once to
display the malfunction location.
Detail
description
on next
page.
<Confirmation of malfunction 4>
Press the SET ( BS2 ) button once to
display the malfunction unit and the
malfunction location.
∗
If you become unsure of how to
proceed, press the MODE ( BS1 )
button and return to the setting
mode 1.
Contents of malfunction
Error
code
High voltage of capacitor in main
inverter circuit Imbalance of inverter power supply voltage P1
Radiation fin thermistor abnormality Faulty thermistor of inverter fin P4
Low pressure drop due to refrigerant
shortage or electronic expansion valve
abnormality Refrigerant shortage alarm U0
Power supply insufficient or
instantaneous failure Insufficient Inverter voltage U2
Faulty charge of capacitor in main inverter circuit
Malfunction due to SP-PAM overvoltage
Malfunction due to P-N short circuit
Check operation is not conducted. U3
Transmission error between indoor
unit and BP unit I/O transmission error U4
I/O transmission error
Transmission error between indoor
unit and outdoor unit in the same
system Indoor unit system abnormal in other system
or other indoor unit system abnormal in own
system U9
Field setting switch abnormality or
Excessive number of indoor units System transmission malfunction UA
Overconnection malfunction of indoor units
Malfunction of field setting
Refrigerant abnormal
Connection error (BP unit)
System abnormality, refrigerant
system address undefined Wiring error (Auto-address error) UH
System is not set yet Conflict in wiring and piping UF